# Seattle (SEA) to Santiago (STI)

Lowest published fares for the months ahead: $620 round trip, Axel-exclusive, American Airlines, 1 stop, Dec 3–6, 2026; $325 one way, Axel-exclusive, American Airlines, 1 stop, Dec 1, 2026; 144 priced flights on 72 exact dates, 1 adult, economy, checked Oct 29, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

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### Seattle (SEA) to Santiago (STI): November 2026

| Travel dates | Airline | Stops | Total price |
| --- | --- | --- | ---: |
| Nov 19, 2026 – Nov 22, 2026 · 3 nights · [Compare return dates departing Nov 19, 2026](https://helloaxel.com/en/flights/choose/sea-sti/nov-19) | American Airlines | Up to 1 stop each way | [Axel-exclusive $682.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/november-19-2026/return/november-22-2026/adults/1/cabin/economy) |
| Nov 19, 2026 – Nov 22, 2026 · 3 nights · [Compare return dates departing Nov 19, 2026](https://helloaxel.com/en/flights/choose/sea-sti/nov-19) | United Airlines | Up to 1 stop each way | [Axel-exclusive $704.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/november-19-2026/return/november-22-2026/adults/1/cabin/economy) |
| Nov 20, 2026 – Nov 23, 2026 · 3 nights · [Compare return dates departing Nov 20, 2026](https://helloaxel.com/en/flights/choose/sea-sti/nov-20) | American Airlines | Up to 1 stop each way | [Axel-exclusive $682.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/november-20-2026/return/november-23-2026/adults/1/cabin/economy) |
| Nov 20, 2026 – Nov 23, 2026 · 3 nights · [Compare return dates departing Nov 20, 2026](https://helloaxel.com/en/flights/choose/sea-sti/nov-20) | United Airlines | Up to 1 stop each way | [Axel-exclusive $704.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/november-20-2026/return/november-23-2026/adults/1/cabin/economy) |
| Nov 21, 2026 – Nov 28, 2026 · 7 nights · [Compare return dates departing Nov 21, 2026](https://helloaxel.com/en/flights/choose/sea-sti/nov-21) | American Airlines | Up to 1 stop each way | [Axel-exclusive $744.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/november-21-2026/return/november-28-2026/adults/1/cabin/economy) |
| Nov 21, 2026 – Nov 28, 2026 · 7 nights · [Compare return dates departing Nov 21, 2026](https://helloaxel.com/en/flights/choose/sea-sti/nov-21) | United Airlines | Up to 1 stop each way | [Axel-exclusive $768.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/november-21-2026/return/november-28-2026/adults/1/cabin/economy) |
| Nov 24, 2026 · One way · [Compare return dates departing Nov 24, 2026](https://helloaxel.com/en/flights/choose/sea-sti/nov-24) | American Airlines | Up to 1 stop each way | [Axel-exclusive $390.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/november-24-2026/trip/one-way/adults/1/cabin/economy) |
| Nov 24, 2026 · One way · [Compare return dates departing Nov 24, 2026](https://helloaxel.com/en/flights/choose/sea-sti/nov-24) | United Airlines | Up to 1 stop each way | [Axel-exclusive $402.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/november-24-2026/trip/one-way/adults/1/cabin/economy) |
| Nov 24, 2026 – Nov 29, 2026 · 5 nights · [Compare return dates departing Nov 24, 2026](https://helloaxel.com/en/flights/choose/sea-sti/nov-24) | American Airlines | Up to 1 stop each way | [Axel-exclusive $744.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/november-24-2026/return/november-29-2026/adults/1/cabin/economy) |
| Nov 24, 2026 – Nov 29, 2026 · 5 nights · [Compare return dates departing Nov 24, 2026](https://helloaxel.com/en/flights/choose/sea-sti/nov-24) | United Airlines | Up to 1 stop each way | [Axel-exclusive $768.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/november-24-2026/return/november-29-2026/adults/1/cabin/economy) |
| Nov 26, 2026 – Nov 29, 2026 · 3 nights · [Compare return dates departing Nov 26, 2026](https://helloaxel.com/en/flights/choose/sea-sti/nov-26) | American Airlines | Up to 1 stop each way | [Axel-exclusive $744.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/november-26-2026/return/november-29-2026/adults/1/cabin/economy) |
| Nov 26, 2026 – Nov 29, 2026 · 3 nights · [Compare return dates departing Nov 26, 2026](https://helloaxel.com/en/flights/choose/sea-sti/nov-26) | United Airlines | Up to 1 stop each way | [Axel-exclusive $768.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/november-26-2026/return/november-29-2026/adults/1/cabin/economy) |
| Nov 27, 2026 – Nov 30, 2026 · 3 nights · [Compare return dates departing Nov 27, 2026](https://helloaxel.com/en/flights/choose/sea-sti/nov-27) | American Airlines | Up to 1 stop each way | [Axel-exclusive $682.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/november-27-2026/return/november-30-2026/adults/1/cabin/economy) |
| Nov 27, 2026 – Nov 30, 2026 · 3 nights · [Compare return dates departing Nov 27, 2026](https://helloaxel.com/en/flights/choose/sea-sti/nov-27) | United Airlines | Up to 1 stop each way | [Axel-exclusive $704.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/november-27-2026/return/november-30-2026/adults/1/cabin/economy) |
| Nov 28, 2026 – Dec 5, 2026 · 7 nights · [Compare return dates departing Nov 28, 2026](https://helloaxel.com/en/flights/choose/sea-sti/nov-28) | American Airlines | Up to 1 stop each way | [Axel-exclusive $682.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/november-28-2026/return/december-5-2026/adults/1/cabin/economy) |
| Nov 28, 2026 – Dec 5, 2026 · 7 nights · [Compare return dates departing Nov 28, 2026](https://helloaxel.com/en/flights/choose/sea-sti/nov-28) | United Airlines | Up to 1 stop each way | [Axel-exclusive $704.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/november-28-2026/return/december-5-2026/adults/1/cabin/economy) |

### Seattle (SEA) to Santiago (STI): December 2026

| Travel dates | Airline | Stops | Total price |
| --- | --- | --- | ---: |
| Dec 1, 2026 · One way · [Compare return dates departing Dec 1, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-1) | American Airlines | Up to 1 stop each way | [Axel-exclusive $325.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-1-2026/trip/one-way/adults/1/cabin/economy) |
| Dec 1, 2026 · One way · [Compare return dates departing Dec 1, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-1) | United Airlines | Up to 1 stop each way | [Axel-exclusive $335.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-1-2026/trip/one-way/adults/1/cabin/economy) |
| Dec 3, 2026 – Dec 6, 2026 · 3 nights · [Compare return dates departing Dec 3, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-3) | American Airlines | Up to 1 stop each way | [Axel-exclusive $620.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-3-2026/return/december-6-2026/adults/1/cabin/economy) |
| Dec 3, 2026 – Dec 6, 2026 · 3 nights · [Compare return dates departing Dec 3, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-3) | United Airlines | Up to 1 stop each way | [Axel-exclusive $640.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-3-2026/return/december-6-2026/adults/1/cabin/economy) |
| Dec 4, 2026 – Dec 7, 2026 · 3 nights · [Compare return dates departing Dec 4, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-4) | American Airlines | Up to 1 stop each way | [Axel-exclusive $620.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-4-2026/return/december-7-2026/adults/1/cabin/economy) |
| Dec 4, 2026 – Dec 7, 2026 · 3 nights · [Compare return dates departing Dec 4, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-4) | United Airlines | Up to 1 stop each way | [Axel-exclusive $640.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-4-2026/return/december-7-2026/adults/1/cabin/economy) |
| Dec 5, 2026 – Dec 12, 2026 · 7 nights · [Compare return dates departing Dec 5, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-5) | American Airlines | Up to 1 stop each way | [Axel-exclusive $620.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-5-2026/return/december-12-2026/adults/1/cabin/economy) |
| Dec 5, 2026 – Dec 12, 2026 · 7 nights · [Compare return dates departing Dec 5, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-5) | United Airlines | Up to 1 stop each way | [Axel-exclusive $640.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-5-2026/return/december-12-2026/adults/1/cabin/economy) |
| Dec 8, 2026 · One way · [Compare return dates departing Dec 8, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-8) | American Airlines | Up to 1 stop each way | [Axel-exclusive $325.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-8-2026/trip/one-way/adults/1/cabin/economy) |
| Dec 8, 2026 · One way · [Compare return dates departing Dec 8, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-8) | United Airlines | Up to 1 stop each way | [Axel-exclusive $335.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-8-2026/trip/one-way/adults/1/cabin/economy) |
| Dec 10, 2026 – Dec 13, 2026 · 3 nights · [Compare return dates departing Dec 10, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-10) | American Airlines | Up to 1 stop each way | [Axel-exclusive $620.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-10-2026/return/december-13-2026/adults/1/cabin/economy) |
| Dec 10, 2026 – Dec 13, 2026 · 3 nights · [Compare return dates departing Dec 10, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-10) | United Airlines | Up to 1 stop each way | [Axel-exclusive $640.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-10-2026/return/december-13-2026/adults/1/cabin/economy) |
| Dec 11, 2026 – Dec 14, 2026 · 3 nights · [Compare return dates departing Dec 11, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-11) | American Airlines | Up to 1 stop each way | [Axel-exclusive $620.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-11-2026/return/december-14-2026/adults/1/cabin/economy) |
| Dec 11, 2026 – Dec 14, 2026 · 3 nights · [Compare return dates departing Dec 11, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-11) | United Airlines | Up to 1 stop each way | [Axel-exclusive $640.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-11-2026/return/december-14-2026/adults/1/cabin/economy) |
| Dec 12, 2026 – Dec 19, 2026 · 7 nights · [Compare return dates departing Dec 12, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-12) | American Airlines | Up to 1 stop each way | [Axel-exclusive $744.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-12-2026/return/december-19-2026/adults/1/cabin/economy) |
| Dec 12, 2026 – Dec 19, 2026 · 7 nights · [Compare return dates departing Dec 12, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-12) | United Airlines | Up to 1 stop each way | [Axel-exclusive $768.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-12-2026/return/december-19-2026/adults/1/cabin/economy) |
| Dec 15, 2026 · One way · [Compare return dates departing Dec 15, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-15) | American Airlines | Up to 1 stop each way | [Axel-exclusive $325.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-15-2026/trip/one-way/adults/1/cabin/economy) |
| Dec 15, 2026 · One way · [Compare return dates departing Dec 15, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-15) | United Airlines | Up to 1 stop each way | [Axel-exclusive $335.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-15-2026/trip/one-way/adults/1/cabin/economy) |
| Dec 17, 2026 – Dec 20, 2026 · 3 nights · [Compare return dates departing Dec 17, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-17) | American Airlines | Up to 1 stop each way | [Axel-exclusive $744.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-17-2026/return/december-20-2026/adults/1/cabin/economy) |
| Dec 17, 2026 – Dec 20, 2026 · 3 nights · [Compare return dates departing Dec 17, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-17) | United Airlines | Up to 1 stop each way | [Axel-exclusive $768.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-17-2026/return/december-20-2026/adults/1/cabin/economy) |
| Dec 18, 2026 – Dec 21, 2026 · 3 nights · [Compare return dates departing Dec 18, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-18) | American Airlines | Up to 1 stop each way | [Axel-exclusive $868.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-18-2026/return/december-21-2026/adults/1/cabin/economy) |
| Dec 18, 2026 – Dec 21, 2026 · 3 nights · [Compare return dates departing Dec 18, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-18) | United Airlines | Up to 1 stop each way | [Axel-exclusive $896.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-18-2026/return/december-21-2026/adults/1/cabin/economy) |
| Dec 19, 2026 – Dec 26, 2026 · 7 nights · [Compare return dates departing Dec 19, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-19) | American Airlines | Up to 1 stop each way | [Axel-exclusive $868.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-19-2026/return/december-26-2026/adults/1/cabin/economy) |
| Dec 19, 2026 – Dec 26, 2026 · 7 nights · [Compare return dates departing Dec 19, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-19) | United Airlines | Up to 1 stop each way | [Axel-exclusive $896.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-19-2026/return/december-26-2026/adults/1/cabin/economy) |
| Dec 22, 2026 · One way · [Compare return dates departing Dec 22, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-22) | American Airlines | Up to 1 stop each way | [Axel-exclusive $455.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-22-2026/trip/one-way/adults/1/cabin/economy) |
| Dec 22, 2026 · One way · [Compare return dates departing Dec 22, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-22) | United Airlines | Up to 1 stop each way | [Axel-exclusive $469.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-22-2026/trip/one-way/adults/1/cabin/economy) |
| Dec 22, 2026 – Dec 27, 2026 · 5 nights · [Compare return dates departing Dec 22, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-22) | American Airlines | Up to 1 stop each way | [Axel-exclusive $868.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-22-2026/return/december-27-2026/adults/1/cabin/economy) |
| Dec 22, 2026 – Dec 27, 2026 · 5 nights · [Compare return dates departing Dec 22, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-22) | United Airlines | Up to 1 stop each way | [Axel-exclusive $896.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-22-2026/return/december-27-2026/adults/1/cabin/economy) |
| Dec 24, 2026 – Dec 27, 2026 · 3 nights · [Compare return dates departing Dec 24, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-24) | American Airlines | Up to 1 stop each way | [Axel-exclusive $868.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-24-2026/return/december-27-2026/adults/1/cabin/economy) |
| Dec 24, 2026 – Dec 27, 2026 · 3 nights · [Compare return dates departing Dec 24, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-24) | United Airlines | Up to 1 stop each way | [Axel-exclusive $896.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-24-2026/return/december-27-2026/adults/1/cabin/economy) |
| Dec 25, 2026 – Dec 28, 2026 · 3 nights · [Compare return dates departing Dec 25, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-25) | American Airlines | Up to 1 stop each way | [Axel-exclusive $868.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-25-2026/return/december-28-2026/adults/1/cabin/economy) |
| Dec 25, 2026 – Dec 28, 2026 · 3 nights · [Compare return dates departing Dec 25, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-25) | United Airlines | Up to 1 stop each way | [Axel-exclusive $896.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-25-2026/return/december-28-2026/adults/1/cabin/economy) |
| Dec 26, 2026 – Jan 2, 2027 · 7 nights · [Compare return dates departing Dec 26, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-26) | American Airlines | Up to 1 stop each way | [Axel-exclusive $868.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-26-2026/return/january-2-2027/adults/1/cabin/economy) |
| Dec 26, 2026 – Jan 2, 2027 · 7 nights · [Compare return dates departing Dec 26, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-26) | United Airlines | Up to 1 stop each way | [Axel-exclusive $896.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-26-2026/return/january-2-2027/adults/1/cabin/economy) |
| Dec 29, 2026 · One way · [Compare return dates departing Dec 29, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-29) | American Airlines | Up to 1 stop each way | [Axel-exclusive $455.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-29-2026/trip/one-way/adults/1/cabin/economy) |
| Dec 29, 2026 · One way · [Compare return dates departing Dec 29, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-29) | United Airlines | Up to 1 stop each way | [Axel-exclusive $469.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-29-2026/trip/one-way/adults/1/cabin/economy) |
| Dec 30, 2026 – Jan 2, 2027 · 3 nights · [Compare return dates departing Dec 30, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-30) | American Airlines | Up to 1 stop each way | [Axel-exclusive $868.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-30-2026/return/january-2-2027/adults/1/cabin/economy) |
| Dec 30, 2026 – Jan 2, 2027 · 3 nights · [Compare return dates departing Dec 30, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-30) | United Airlines | Up to 1 stop each way | [Axel-exclusive $896.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-30-2026/return/january-2-2027/adults/1/cabin/economy) |
| Dec 31, 2026 – Jan 3, 2027 · 3 nights · [Compare return dates departing Dec 31, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-31) | American Airlines | Up to 1 stop each way | [Axel-exclusive $868.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-31-2026/return/january-3-2027/adults/1/cabin/economy) |
| Dec 31, 2026 – Jan 3, 2027 · 3 nights · [Compare return dates departing Dec 31, 2026](https://helloaxel.com/en/flights/choose/sea-sti/dec-31) | United Airlines | Up to 1 stop each way | [Axel-exclusive $896.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/december-31-2026/return/january-3-2027/adults/1/cabin/economy) |

### Seattle (SEA) to Santiago (STI): January 2027

| Travel dates | Airline | Stops | Total price |
| --- | --- | --- | ---: |
| Jan 1, 2027 – Jan 4, 2027 · 3 nights · [Compare return dates departing Jan 1, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-1) | American Airlines | Up to 1 stop each way | [Axel-exclusive $868.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-1-2027/return/january-4-2027/adults/1/cabin/economy) |
| Jan 1, 2027 – Jan 4, 2027 · 3 nights · [Compare return dates departing Jan 1, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-1) | United Airlines | Up to 1 stop each way | [Axel-exclusive $896.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-1-2027/return/january-4-2027/adults/1/cabin/economy) |
| Jan 2, 2027 – Jan 9, 2027 · 7 nights · [Compare return dates departing Jan 2, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-2) | American Airlines | Up to 1 stop each way | [Axel-exclusive $744.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-2-2027/return/january-9-2027/adults/1/cabin/economy) |
| Jan 2, 2027 – Jan 9, 2027 · 7 nights · [Compare return dates departing Jan 2, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-2) | United Airlines | Up to 1 stop each way | [Axel-exclusive $768.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-2-2027/return/january-9-2027/adults/1/cabin/economy) |
| Jan 5, 2027 · One way · [Compare return dates departing Jan 5, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-5) | American Airlines | Up to 1 stop each way | [Axel-exclusive $455.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-5-2027/trip/one-way/adults/1/cabin/economy) |
| Jan 5, 2027 · One way · [Compare return dates departing Jan 5, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-5) | United Airlines | Up to 1 stop each way | [Axel-exclusive $469.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-5-2027/trip/one-way/adults/1/cabin/economy) |
| Jan 7, 2027 – Jan 10, 2027 · 3 nights · [Compare return dates departing Jan 7, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-7) | American Airlines | Up to 1 stop each way | [Axel-exclusive $620.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-7-2027/return/january-10-2027/adults/1/cabin/economy) |
| Jan 7, 2027 – Jan 10, 2027 · 3 nights · [Compare return dates departing Jan 7, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-7) | United Airlines | Up to 1 stop each way | [Axel-exclusive $640.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-7-2027/return/january-10-2027/adults/1/cabin/economy) |
| Jan 8, 2027 – Jan 11, 2027 · 3 nights · [Compare return dates departing Jan 8, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-8) | American Airlines | Up to 1 stop each way | [Axel-exclusive $620.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-8-2027/return/january-11-2027/adults/1/cabin/economy) |
| Jan 8, 2027 – Jan 11, 2027 · 3 nights · [Compare return dates departing Jan 8, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-8) | United Airlines | Up to 1 stop each way | [Axel-exclusive $640.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-8-2027/return/january-11-2027/adults/1/cabin/economy) |
| Jan 9, 2027 – Jan 16, 2027 · 7 nights · [Compare return dates departing Jan 9, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-9) | American Airlines | Up to 1 stop each way | [Axel-exclusive $620.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-9-2027/return/january-16-2027/adults/1/cabin/economy) |
| Jan 9, 2027 – Jan 16, 2027 · 7 nights · [Compare return dates departing Jan 9, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-9) | United Airlines | Up to 1 stop each way | [Axel-exclusive $640.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-9-2027/return/january-16-2027/adults/1/cabin/economy) |
| Jan 12, 2027 · One way · [Compare return dates departing Jan 12, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-12) | American Airlines | Up to 1 stop each way | [Axel-exclusive $325.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-12-2027/trip/one-way/adults/1/cabin/economy) |
| Jan 12, 2027 · One way · [Compare return dates departing Jan 12, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-12) | United Airlines | Up to 1 stop each way | [Axel-exclusive $335.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-12-2027/trip/one-way/adults/1/cabin/economy) |
| Jan 14, 2027 – Jan 17, 2027 · 3 nights · [Compare return dates departing Jan 14, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-14) | American Airlines | Up to 1 stop each way | [Axel-exclusive $620.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-14-2027/return/january-17-2027/adults/1/cabin/economy) |
| Jan 14, 2027 – Jan 17, 2027 · 3 nights · [Compare return dates departing Jan 14, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-14) | United Airlines | Up to 1 stop each way | [Axel-exclusive $640.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-14-2027/return/january-17-2027/adults/1/cabin/economy) |
| Jan 15, 2027 – Jan 18, 2027 · 3 nights · [Compare return dates departing Jan 15, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-15) | American Airlines | Up to 1 stop each way | [Axel-exclusive $620.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-15-2027/return/january-18-2027/adults/1/cabin/economy) |
| Jan 15, 2027 – Jan 18, 2027 · 3 nights · [Compare return dates departing Jan 15, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-15) | United Airlines | Up to 1 stop each way | [Axel-exclusive $640.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-15-2027/return/january-18-2027/adults/1/cabin/economy) |
| Jan 16, 2027 – Jan 23, 2027 · 7 nights · [Compare return dates departing Jan 16, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-16) | American Airlines | Up to 1 stop each way | [Axel-exclusive $620.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-16-2027/return/january-23-2027/adults/1/cabin/economy) |
| Jan 16, 2027 – Jan 23, 2027 · 7 nights · [Compare return dates departing Jan 16, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-16) | United Airlines | Up to 1 stop each way | [Axel-exclusive $640.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-16-2027/return/january-23-2027/adults/1/cabin/economy) |
| Jan 19, 2027 · One way · [Compare return dates departing Jan 19, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-19) | American Airlines | Up to 1 stop each way | [Axel-exclusive $325.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-19-2027/trip/one-way/adults/1/cabin/economy) |
| Jan 19, 2027 · One way · [Compare return dates departing Jan 19, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-19) | United Airlines | Up to 1 stop each way | [Axel-exclusive $335.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-19-2027/trip/one-way/adults/1/cabin/economy) |
| Jan 21, 2027 – Jan 24, 2027 · 3 nights · [Compare return dates departing Jan 21, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-21) | American Airlines | Up to 1 stop each way | [Axel-exclusive $620.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-21-2027/return/january-24-2027/adults/1/cabin/economy) |
| Jan 21, 2027 – Jan 24, 2027 · 3 nights · [Compare return dates departing Jan 21, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-21) | United Airlines | Up to 1 stop each way | [Axel-exclusive $640.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-21-2027/return/january-24-2027/adults/1/cabin/economy) |
| Jan 22, 2027 – Jan 25, 2027 · 3 nights · [Compare return dates departing Jan 22, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-22) | American Airlines | Up to 1 stop each way | [Axel-exclusive $620.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-22-2027/return/january-25-2027/adults/1/cabin/economy) |
| Jan 22, 2027 – Jan 25, 2027 · 3 nights · [Compare return dates departing Jan 22, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-22) | United Airlines | Up to 1 stop each way | [Axel-exclusive $640.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-22-2027/return/january-25-2027/adults/1/cabin/economy) |
| Jan 23, 2027 – Jan 30, 2027 · 7 nights · [Compare return dates departing Jan 23, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-23) | American Airlines | Up to 1 stop each way | [Axel-exclusive $620.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-23-2027/return/january-30-2027/adults/1/cabin/economy) |
| Jan 23, 2027 – Jan 30, 2027 · 7 nights · [Compare return dates departing Jan 23, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-23) | United Airlines | Up to 1 stop each way | [Axel-exclusive $640.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-23-2027/return/january-30-2027/adults/1/cabin/economy) |
| Jan 26, 2027 · One way · [Compare return dates departing Jan 26, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-26) | American Airlines | Up to 1 stop each way | [Axel-exclusive $325.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-26-2027/trip/one-way/adults/1/cabin/economy) |
| Jan 26, 2027 · One way · [Compare return dates departing Jan 26, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-26) | United Airlines | Up to 1 stop each way | [Axel-exclusive $335.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-26-2027/trip/one-way/adults/1/cabin/economy) |
| Jan 28, 2027 – Jan 31, 2027 · 3 nights · [Compare return dates departing Jan 28, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-28) | American Airlines | Up to 1 stop each way | [Axel-exclusive $620.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-28-2027/return/january-31-2027/adults/1/cabin/economy) |
| Jan 28, 2027 – Jan 31, 2027 · 3 nights · [Compare return dates departing Jan 28, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-28) | United Airlines | Up to 1 stop each way | [Axel-exclusive $640.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-28-2027/return/january-31-2027/adults/1/cabin/economy) |
| Jan 29, 2027 – Feb 1, 2027 · 3 nights · [Compare return dates departing Jan 29, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-29) | American Airlines | Up to 1 stop each way | [Axel-exclusive $620.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-29-2027/return/february-1-2027/adults/1/cabin/economy) |
| Jan 29, 2027 – Feb 1, 2027 · 3 nights · [Compare return dates departing Jan 29, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-29) | United Airlines | Up to 1 stop each way | [Axel-exclusive $640.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-29-2027/return/february-1-2027/adults/1/cabin/economy) |
| Jan 30, 2027 – Feb 6, 2027 · 7 nights · [Compare return dates departing Jan 30, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-30) | American Airlines | Up to 1 stop each way | [Axel-exclusive $620.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-30-2027/return/february-6-2027/adults/1/cabin/economy) |
| Jan 30, 2027 – Feb 6, 2027 · 7 nights · [Compare return dates departing Jan 30, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jan-30) | United Airlines | Up to 1 stop each way | [Axel-exclusive $640.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/january-30-2027/return/february-6-2027/adults/1/cabin/economy) |

### Seattle (SEA) to Santiago (STI): February 2027

| Travel dates | Airline | Stops | Total price |
| --- | --- | --- | ---: |
| Feb 2, 2027 · One way · [Compare return dates departing Feb 2, 2027](https://helloaxel.com/en/flights/choose/sea-sti/feb-2) | American Airlines | Up to 1 stop each way | [Axel-exclusive $325.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/february-2-2027/trip/one-way/adults/1/cabin/economy) |
| Feb 2, 2027 · One way · [Compare return dates departing Feb 2, 2027](https://helloaxel.com/en/flights/choose/sea-sti/feb-2) | United Airlines | Up to 1 stop each way | [Axel-exclusive $335.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/february-2-2027/trip/one-way/adults/1/cabin/economy) |
| Feb 4, 2027 – Feb 7, 2027 · 3 nights · [Compare return dates departing Feb 4, 2027](https://helloaxel.com/en/flights/choose/sea-sti/feb-4) | American Airlines | Up to 1 stop each way | [Axel-exclusive $620.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/february-4-2027/return/february-7-2027/adults/1/cabin/economy) |
| Feb 4, 2027 – Feb 7, 2027 · 3 nights · [Compare return dates departing Feb 4, 2027](https://helloaxel.com/en/flights/choose/sea-sti/feb-4) | United Airlines | Up to 1 stop each way | [Axel-exclusive $640.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/february-4-2027/return/february-7-2027/adults/1/cabin/economy) |
| Feb 5, 2027 – Feb 8, 2027 · 3 nights · [Compare return dates departing Feb 5, 2027](https://helloaxel.com/en/flights/choose/sea-sti/feb-5) | American Airlines | Up to 1 stop each way | [Axel-exclusive $620.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/february-5-2027/return/february-8-2027/adults/1/cabin/economy) |
| Feb 5, 2027 – Feb 8, 2027 · 3 nights · [Compare return dates departing Feb 5, 2027](https://helloaxel.com/en/flights/choose/sea-sti/feb-5) | United Airlines | Up to 1 stop each way | [Axel-exclusive $640.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/february-5-2027/return/february-8-2027/adults/1/cabin/economy) |
| Feb 6, 2027 – Feb 13, 2027 · 7 nights · [Compare return dates departing Feb 6, 2027](https://helloaxel.com/en/flights/choose/sea-sti/feb-6) | American Airlines | Up to 1 stop each way | [Axel-exclusive $657.20](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/february-6-2027/return/february-13-2027/adults/1/cabin/economy) |
| Feb 6, 2027 – Feb 13, 2027 · 7 nights · [Compare return dates departing Feb 6, 2027](https://helloaxel.com/en/flights/choose/sea-sti/feb-6) | United Airlines | Up to 1 stop each way | [Axel-exclusive $678.40](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/february-6-2027/return/february-13-2027/adults/1/cabin/economy) |
| Feb 12, 2027 – Feb 15, 2027 · 3 nights · [Compare return dates departing Feb 12, 2027](https://helloaxel.com/en/flights/choose/sea-sti/feb-12) | American Airlines | Up to 1 stop each way | [Axel-exclusive $694.40](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/february-12-2027/return/february-15-2027/adults/1/cabin/economy) |
| Feb 12, 2027 – Feb 15, 2027 · 3 nights · [Compare return dates departing Feb 12, 2027](https://helloaxel.com/en/flights/choose/sea-sti/feb-12) | United Airlines | Up to 1 stop each way | [Axel-exclusive $716.80](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/february-12-2027/return/february-15-2027/adults/1/cabin/economy) |
| Feb 19, 2027 – Feb 22, 2027 · 3 nights · [Compare return dates departing Feb 19, 2027](https://helloaxel.com/en/flights/choose/sea-sti/feb-19) | American Airlines | Up to 1 stop each way | [Axel-exclusive $620.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/february-19-2027/return/february-22-2027/adults/1/cabin/economy) |
| Feb 19, 2027 – Feb 22, 2027 · 3 nights · [Compare return dates departing Feb 19, 2027](https://helloaxel.com/en/flights/choose/sea-sti/feb-19) | United Airlines | Up to 1 stop each way | [Axel-exclusive $640.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/february-19-2027/return/february-22-2027/adults/1/cabin/economy) |
| Feb 20, 2027 – Feb 27, 2027 · 7 nights · [Compare return dates departing Feb 20, 2027](https://helloaxel.com/en/flights/choose/sea-sti/feb-20) | American Airlines | Up to 1 stop each way | [Axel-exclusive $620.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/february-20-2027/return/february-27-2027/adults/1/cabin/economy) |
| Feb 20, 2027 – Feb 27, 2027 · 7 nights · [Compare return dates departing Feb 20, 2027](https://helloaxel.com/en/flights/choose/sea-sti/feb-20) | United Airlines | Up to 1 stop each way | [Axel-exclusive $640.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/february-20-2027/return/february-27-2027/adults/1/cabin/economy) |

### Seattle (SEA) to Santiago (STI): March 2027

| Travel dates | Airline | Stops | Total price |
| --- | --- | --- | ---: |
| Mar 19, 2027 – Mar 22, 2027 · 3 nights · [Compare return dates departing Mar 19, 2027](https://helloaxel.com/en/flights/choose/sea-sti/mar-19) | American Airlines | Up to 1 stop each way | [Axel-exclusive $697.50](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/march-19-2027/return/march-22-2027/adults/1/cabin/economy) |
| Mar 19, 2027 – Mar 22, 2027 · 3 nights · [Compare return dates departing Mar 19, 2027](https://helloaxel.com/en/flights/choose/sea-sti/mar-19) | United Airlines | Up to 1 stop each way | [Axel-exclusive $720.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/march-19-2027/return/march-22-2027/adults/1/cabin/economy) |
| Mar 20, 2027 – Mar 27, 2027 · 7 nights · [Compare return dates departing Mar 20, 2027](https://helloaxel.com/en/flights/choose/sea-sti/mar-20) | American Airlines | Up to 1 stop each way | [Axel-exclusive $775.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/march-20-2027/return/march-27-2027/adults/1/cabin/economy) |
| Mar 20, 2027 – Mar 27, 2027 · 7 nights · [Compare return dates departing Mar 20, 2027](https://helloaxel.com/en/flights/choose/sea-sti/mar-20) | United Airlines | Up to 1 stop each way | [Axel-exclusive $800.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/march-20-2027/return/march-27-2027/adults/1/cabin/economy) |
| Mar 25, 2027 – Mar 29, 2027 · 4 nights · [Compare return dates departing Mar 25, 2027](https://helloaxel.com/en/flights/choose/sea-sti/mar-25) | American Airlines | Up to 1 stop each way | [Axel-exclusive $825.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/march-25-2027/return/march-29-2027/adults/1/cabin/economy) |
| Mar 25, 2027 – Mar 29, 2027 · 4 nights · [Compare return dates departing Mar 25, 2027](https://helloaxel.com/en/flights/choose/sea-sti/mar-25) | United Airlines | Up to 1 stop each way | [Axel-exclusive $850.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/march-25-2027/return/march-29-2027/adults/1/cabin/economy) |

### Seattle (SEA) to Santiago (STI): April 2027

| Travel dates | Airline | Stops | Total price |
| --- | --- | --- | ---: |
| Apr 16, 2027 – Apr 19, 2027 · 3 nights · [Compare return dates departing Apr 16, 2027](https://helloaxel.com/en/flights/choose/sea-sti/apr-16) | American Airlines | Up to 1 stop each way | [Axel-exclusive $665.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/april-16-2027/return/april-19-2027/adults/1/cabin/economy) |
| Apr 16, 2027 – Apr 19, 2027 · 3 nights · [Compare return dates departing Apr 16, 2027](https://helloaxel.com/en/flights/choose/sea-sti/apr-16) | Delta Air Lines / American Airlines | Up to 1 stop each way | [Axel-exclusive $684.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/april-16-2027/return/april-19-2027/adults/1/cabin/economy) |
| Apr 17, 2027 – Apr 24, 2027 · 7 nights · [Compare return dates departing Apr 17, 2027](https://helloaxel.com/en/flights/choose/sea-sti/apr-17) | American Airlines | Up to 1 stop each way | [Axel-exclusive $665.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/april-17-2027/return/april-24-2027/adults/1/cabin/economy) |
| Apr 17, 2027 – Apr 24, 2027 · 7 nights · [Compare return dates departing Apr 17, 2027](https://helloaxel.com/en/flights/choose/sea-sti/apr-17) | Delta Air Lines / American Airlines | Up to 1 stop each way | [Axel-exclusive $684.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/april-17-2027/return/april-24-2027/adults/1/cabin/economy) |

### Seattle (SEA) to Santiago (STI): May 2027

| Travel dates | Airline | Stops | Total price |
| --- | --- | --- | ---: |
| May 14, 2027 – May 17, 2027 · 3 nights · [Compare return dates departing May 14, 2027](https://helloaxel.com/en/flights/choose/sea-sti/may-14) | American Airlines | Up to 1 stop each way | [Axel-exclusive $665.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/may-14-2027/return/may-17-2027/adults/1/cabin/economy) |
| May 14, 2027 – May 17, 2027 · 3 nights · [Compare return dates departing May 14, 2027](https://helloaxel.com/en/flights/choose/sea-sti/may-14) | Delta Air Lines / American Airlines | Up to 1 stop each way | [Axel-exclusive $684.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/may-14-2027/return/may-17-2027/adults/1/cabin/economy) |
| May 15, 2027 – May 22, 2027 · 7 nights · [Compare return dates departing May 15, 2027](https://helloaxel.com/en/flights/choose/sea-sti/may-15) | American Airlines | Up to 1 stop each way | [Axel-exclusive $665.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/may-15-2027/return/may-22-2027/adults/1/cabin/economy) |
| May 15, 2027 – May 22, 2027 · 7 nights · [Compare return dates departing May 15, 2027](https://helloaxel.com/en/flights/choose/sea-sti/may-15) | United Airlines | Up to 1 stop each way | [Axel-exclusive $684.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/may-15-2027/return/may-22-2027/adults/1/cabin/economy) |
| May 28, 2027 – May 31, 2027 · 3 nights · [Compare return dates departing May 28, 2027](https://helloaxel.com/en/flights/choose/sea-sti/may-28) | American Airlines | Up to 1 stop each way | [Axel-exclusive $665.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/may-28-2027/return/may-31-2027/adults/1/cabin/economy) |
| May 28, 2027 – May 31, 2027 · 3 nights · [Compare return dates departing May 28, 2027](https://helloaxel.com/en/flights/choose/sea-sti/may-28) | Delta Air Lines / American Airlines | Up to 1 stop each way | [Axel-exclusive $684.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/may-28-2027/return/may-31-2027/adults/1/cabin/economy) |

### Seattle (SEA) to Santiago (STI): June 2027

| Travel dates | Airline | Stops | Total price |
| --- | --- | --- | ---: |
| Jun 11, 2027 – Jun 14, 2027 · 3 nights · [Compare return dates departing Jun 11, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jun-11) | American Airlines | Up to 1 stop each way | [Axel-exclusive $700.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/june-11-2027/return/june-14-2027/adults/1/cabin/economy) |
| Jun 11, 2027 – Jun 14, 2027 · 3 nights · [Compare return dates departing Jun 11, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jun-11) | Delta Air Lines / American Airlines | Up to 1 stop each way | [Axel-exclusive $720.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/june-11-2027/return/june-14-2027/adults/1/cabin/economy) |
| Jun 12, 2027 – Jun 19, 2027 · 7 nights · [Compare return dates departing Jun 12, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jun-12) | American Airlines | Up to 1 stop each way | [Axel-exclusive $700.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/june-12-2027/return/june-19-2027/adults/1/cabin/economy) |
| Jun 12, 2027 – Jun 19, 2027 · 7 nights · [Compare return dates departing Jun 12, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jun-12) | Delta Air Lines / American Airlines | Up to 1 stop each way | [Axel-exclusive $720.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/june-12-2027/return/june-19-2027/adults/1/cabin/economy) |

### Seattle (SEA) to Santiago (STI): July 2027

| Travel dates | Airline | Stops | Total price |
| --- | --- | --- | ---: |
| Jul 2, 2027 – Jul 6, 2027 · 4 nights · [Compare return dates departing Jul 2, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jul-2) | American Airlines | Up to 1 stop each way | [Axel-exclusive $784.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/july-2-2027/return/july-6-2027/adults/1/cabin/economy) |
| Jul 2, 2027 – Jul 6, 2027 · 4 nights · [Compare return dates departing Jul 2, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jul-2) | Delta Air Lines / American Airlines | Up to 1 stop each way | [Axel-exclusive $806.40](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/july-2-2027/return/july-6-2027/adults/1/cabin/economy) |
| Jul 9, 2027 – Jul 12, 2027 · 3 nights · [Compare return dates departing Jul 9, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jul-9) | American Airlines | Up to 1 stop each way | [Axel-exclusive $700.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/july-9-2027/return/july-12-2027/adults/1/cabin/economy) |
| Jul 9, 2027 – Jul 12, 2027 · 3 nights · [Compare return dates departing Jul 9, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jul-9) | United Airlines | Up to 1 stop each way | [Axel-exclusive $720.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/july-9-2027/return/july-12-2027/adults/1/cabin/economy) |
| Jul 10, 2027 – Jul 17, 2027 · 7 nights · [Compare return dates departing Jul 10, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jul-10) | American Airlines | Up to 1 stop each way | [Axel-exclusive $700.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/july-10-2027/return/july-17-2027/adults/1/cabin/economy) |
| Jul 10, 2027 – Jul 17, 2027 · 7 nights · [Compare return dates departing Jul 10, 2027](https://helloaxel.com/en/flights/choose/sea-sti/jul-10) | Delta Air Lines / American Airlines | Up to 1 stop each way | [Axel-exclusive $720.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/july-10-2027/return/july-17-2027/adults/1/cabin/economy) |

### Seattle (SEA) to Santiago (STI): August 2027

| Travel dates | Airline | Stops | Total price |
| --- | --- | --- | ---: |
| Aug 6, 2027 – Aug 9, 2027 · 3 nights · [Compare return dates departing Aug 6, 2027](https://helloaxel.com/en/flights/choose/sea-sti/aug-6) | American Airlines | Up to 1 stop each way | [Axel-exclusive $700.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/august-6-2027/return/august-9-2027/adults/1/cabin/economy) |
| Aug 6, 2027 – Aug 9, 2027 · 3 nights · [Compare return dates departing Aug 6, 2027](https://helloaxel.com/en/flights/choose/sea-sti/aug-6) | Delta Air Lines / American Airlines | Up to 1 stop each way | [Axel-exclusive $720.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/august-6-2027/return/august-9-2027/adults/1/cabin/economy) |
| Aug 7, 2027 – Aug 14, 2027 · 7 nights · [Compare return dates departing Aug 7, 2027](https://helloaxel.com/en/flights/choose/sea-sti/aug-7) | American Airlines | Up to 1 stop each way | [Axel-exclusive $700.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/august-7-2027/return/august-14-2027/adults/1/cabin/economy) |
| Aug 7, 2027 – Aug 14, 2027 · 7 nights · [Compare return dates departing Aug 7, 2027](https://helloaxel.com/en/flights/choose/sea-sti/aug-7) | Delta Air Lines / American Airlines | Up to 1 stop each way | [Axel-exclusive $720.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/august-7-2027/return/august-14-2027/adults/1/cabin/economy) |

### Seattle (SEA) to Santiago (STI): September 2027

| Travel dates | Airline | Stops | Total price |
| --- | --- | --- | ---: |
| Sep 3, 2027 – Sep 6, 2027 · 3 nights · [Compare return dates departing Sep 3, 2027](https://helloaxel.com/en/flights/choose/sea-sti/sep-3) | American Airlines | Up to 1 stop each way | [Axel-exclusive $630.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/september-3-2027/return/september-6-2027/adults/1/cabin/economy) |
| Sep 3, 2027 – Sep 6, 2027 · 3 nights · [Compare return dates departing Sep 3, 2027](https://helloaxel.com/en/flights/choose/sea-sti/sep-3) | Delta Air Lines / American Airlines | Up to 1 stop each way | [Axel-exclusive $648.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/september-3-2027/return/september-6-2027/adults/1/cabin/economy) |
| Sep 4, 2027 – Sep 11, 2027 · 7 nights · [Compare return dates departing Sep 4, 2027](https://helloaxel.com/en/flights/choose/sea-sti/sep-4) | American Airlines | Up to 1 stop each way | [Axel-exclusive $630.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/september-4-2027/return/september-11-2027/adults/1/cabin/economy) |
| Sep 4, 2027 – Sep 11, 2027 · 7 nights · [Compare return dates departing Sep 4, 2027](https://helloaxel.com/en/flights/choose/sea-sti/sep-4) | United Airlines | Up to 1 stop each way | [Axel-exclusive $648.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/september-4-2027/return/september-11-2027/adults/1/cabin/economy) |
| Sep 24, 2027 – Sep 27, 2027 · 3 nights · [Compare return dates departing Sep 24, 2027](https://helloaxel.com/en/flights/choose/sea-sti/sep-24) | American Airlines | Up to 1 stop each way | [Axel-exclusive $630.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/september-24-2027/return/september-27-2027/adults/1/cabin/economy) |
| Sep 24, 2027 – Sep 27, 2027 · 3 nights · [Compare return dates departing Sep 24, 2027](https://helloaxel.com/en/flights/choose/sea-sti/sep-24) | Delta Air Lines / American Airlines | Up to 1 stop each way | [Axel-exclusive $648.00](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/september-24-2027/return/september-27-2027/adults/1/cabin/economy) |
| Sep 25, 2027 – Oct 2, 2027 · 7 nights · [Compare return dates departing Sep 25, 2027](https://helloaxel.com/en/flights/choose/sea-sti/sep-25) | American Airlines | Up to 1 stop each way | [Axel-exclusive $647.50](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/september-25-2027/return/october-2-2027/adults/1/cabin/economy) |
| Sep 25, 2027 – Oct 2, 2027 · 7 nights · [Compare return dates departing Sep 25, 2027](https://helloaxel.com/en/flights/choose/sea-sti/sep-25) | Delta Air Lines / American Airlines | Up to 1 stop each way | [Axel-exclusive $665.50](https://helloaxel.com/en/f/start/from/sea/to/sti/depart/september-25-2027/return/october-2-2027/adults/1/cabin/economy) |

[Route overview: Seattle to Santiago (STI) flight deals](/en/flights/from-seattle-sea-to-santiago-sti)

### 2026-11-19 → 2026-11-22 · Axel-exclusive $682.00

- American Airlines AA2142 / AA861: SEA 2026-11-19 21:23:00 → STI 2026-11-20 13:25:00; 1 stop(s) via MIA; 722 minutes. Local airport times.
  - AA2142: SEA 2026-11-19 21:23:00 → MIA 2026-11-20 06:10:00; layover at MIA: 235 minutes.
  - AA861: MIA 2026-11-20 10:05:00 → STI 2026-11-20 13:25:00.
- American Airlines AA840 / AA2363: STI 2026-11-22 17:02:00 → SEA 2026-11-23 00:59:00; 1 stop(s) via MIA; 717 minutes. Local airport times.
  - AA840: STI 2026-11-22 17:02:00 → MIA 2026-11-22 18:25:00; layover at MIA: 156 minutes.
  - AA2363: MIA 2026-11-22 21:01:00 → SEA 2026-11-23 00:59:00.

### 2026-11-19 → 2026-11-22 · Axel-exclusive $704.00

- United Airlines UA1538 / UA1624: SEA 2026-11-19 23:15:00 → STI 2026-11-20 14:53:00; 1 stop(s) via EWR; 698 minutes. Local airport times.
  - UA1538: SEA 2026-11-19 23:15:00 → EWR 2026-11-20 07:21:00; layover at EWR: 163 minutes.
  - UA1624: EWR 2026-11-20 10:04:00 → STI 2026-11-20 14:53:00.
- United Airlines UA620 / UA2614: STI 2026-11-22 12:55:00 → SEA 2026-11-22 21:49:00; 1 stop(s) via EWR; 774 minutes. Local airport times.
  - UA620: STI 2026-11-22 12:55:00 → EWR 2026-11-22 16:00:00; layover at EWR: 145 minutes.
  - UA2614: EWR 2026-11-22 18:25:00 → SEA 2026-11-22 21:49:00.

### 2026-11-24 · one way · Axel-exclusive $390.00

- American Airlines AA2142 / AA861: SEA 2026-11-24 21:23:00 → STI 2026-11-25 13:25:00; 1 stop(s) via MIA; 722 minutes. Local airport times.
  - AA2142: SEA 2026-11-24 21:23:00 → MIA 2026-11-25 06:10:00; layover at MIA: 235 minutes.
  - AA861: MIA 2026-11-25 10:05:00 → STI 2026-11-25 13:25:00.

### 2026-11-24 · one way · Axel-exclusive $402.00

- United Airlines UA1538 / UA1624: SEA 2026-11-24 23:15:00 → STI 2026-11-25 14:53:00; 1 stop(s) via EWR; 698 minutes. Local airport times.
  - UA1538: SEA 2026-11-24 23:15:00 → EWR 2026-11-25 07:21:00; layover at EWR: 163 minutes.
  - UA1624: EWR 2026-11-25 10:04:00 → STI 2026-11-25 14:53:00.

### 2026-11-28 → 2026-12-05 · Axel-exclusive $682.00

- American Airlines AA2142 / AA861: SEA 2026-11-28 21:23:00 → STI 2026-11-29 13:25:00; 1 stop(s) via MIA; 722 minutes. Local airport times.
  - AA2142: SEA 2026-11-28 21:23:00 → MIA 2026-11-29 06:10:00; layover at MIA: 235 minutes.
  - AA861: MIA 2026-11-29 10:05:00 → STI 2026-11-29 13:25:00.
- American Airlines AA840 / AA2363: STI 2026-12-05 17:02:00 → SEA 2026-12-06 00:59:00; 1 stop(s) via MIA; 717 minutes. Local airport times.
  - AA840: STI 2026-12-05 17:02:00 → MIA 2026-12-05 18:25:00; layover at MIA: 156 minutes.
  - AA2363: MIA 2026-12-05 21:01:00 → SEA 2026-12-06 00:59:00.

### 2026-11-28 → 2026-12-05 · Axel-exclusive $704.00

- United Airlines UA1538 / UA1624: SEA 2026-11-28 23:15:00 → STI 2026-11-29 14:53:00; 1 stop(s) via EWR; 698 minutes. Local airport times.
  - UA1538: SEA 2026-11-28 23:15:00 → EWR 2026-11-29 07:21:00; layover at EWR: 163 minutes.
  - UA1624: EWR 2026-11-29 10:04:00 → STI 2026-11-29 14:53:00.
- United Airlines UA620 / UA2614: STI 2026-12-05 12:55:00 → SEA 2026-12-05 21:49:00; 1 stop(s) via EWR; 774 minutes. Local airport times.
  - UA620: STI 2026-12-05 12:55:00 → EWR 2026-12-05 16:00:00; layover at EWR: 145 minutes.
  - UA2614: EWR 2026-12-05 18:25:00 → SEA 2026-12-05 21:49:00.

### 2026-12-12 → 2026-12-19 · Axel-exclusive $744.00

- American Airlines AA2142 / AA861: SEA 2026-12-12 21:23:00 → STI 2026-12-13 13:25:00; 1 stop(s) via MIA; 722 minutes. Local airport times.
  - AA2142: SEA 2026-12-12 21:23:00 → MIA 2026-12-13 06:10:00; layover at MIA: 235 minutes.
  - AA861: MIA 2026-12-13 10:05:00 → STI 2026-12-13 13:25:00.
- American Airlines AA840 / AA2363: STI 2026-12-19 17:02:00 → SEA 2026-12-20 00:59:00; 1 stop(s) via MIA; 717 minutes. Local airport times.
  - AA840: STI 2026-12-19 17:02:00 → MIA 2026-12-19 18:25:00; layover at MIA: 156 minutes.
  - AA2363: MIA 2026-12-19 21:01:00 → SEA 2026-12-20 00:59:00.

### 2026-12-12 → 2026-12-19 · Axel-exclusive $768.00

- United Airlines UA1538 / UA1624: SEA 2026-12-12 23:15:00 → STI 2026-12-13 14:53:00; 1 stop(s) via EWR; 698 minutes. Local airport times.
  - UA1538: SEA 2026-12-12 23:15:00 → EWR 2026-12-13 07:21:00; layover at EWR: 163 minutes.
  - UA1624: EWR 2026-12-13 10:04:00 → STI 2026-12-13 14:53:00.
- United Airlines UA620 / UA2614: STI 2026-12-19 12:55:00 → SEA 2026-12-19 21:49:00; 1 stop(s) via EWR; 774 minutes. Local airport times.
  - UA620: STI 2026-12-19 12:55:00 → EWR 2026-12-19 16:00:00; layover at EWR: 145 minutes.
  - UA2614: EWR 2026-12-19 18:25:00 → SEA 2026-12-19 21:49:00.

### 2026-12-25 → 2026-12-28 · Axel-exclusive $868.00

- American Airlines AA2500 / AA2138: SEA 2026-12-25 23:17:00 → STI 2026-12-26 15:16:00; 1 stop(s) via PHL; 719 minutes. Local airport times.
  - AA2500: SEA 2026-12-25 23:17:00 → PHL 2026-12-26 07:19:00; layover at PHL: 196 minutes.
  - AA2138: PHL 2026-12-26 10:35:00 → STI 2026-12-26 15:16:00.
- American Airlines AA840 / AA2363: STI 2026-12-28 17:02:00 → SEA 2026-12-29 00:59:00; 1 stop(s) via MIA; 717 minutes. Local airport times.
  - AA840: STI 2026-12-28 17:02:00 → MIA 2026-12-28 18:25:00; layover at MIA: 156 minutes.
  - AA2363: MIA 2026-12-28 21:01:00 → SEA 2026-12-29 00:59:00.

### 2026-12-25 → 2026-12-28 · Axel-exclusive $896.00

- United Airlines UA1538 / UA1624: SEA 2026-12-25 23:15:00 → STI 2026-12-26 14:53:00; 1 stop(s) via EWR; 698 minutes. Local airport times.
  - UA1538: SEA 2026-12-25 23:15:00 → EWR 2026-12-26 07:21:00; layover at EWR: 163 minutes.
  - UA1624: EWR 2026-12-26 10:04:00 → STI 2026-12-26 14:53:00.
- United Airlines UA620 / UA2614: STI 2026-12-28 12:55:00 → SEA 2026-12-28 21:49:00; 1 stop(s) via EWR; 774 minutes. Local airport times.
  - UA620: STI 2026-12-28 12:55:00 → EWR 2026-12-28 16:00:00; layover at EWR: 145 minutes.
  - UA2614: EWR 2026-12-28 18:25:00 → SEA 2026-12-28 21:49:00.

### 2027-01-07 → 2027-01-10 · Axel-exclusive $620.00

- American Airlines AA2142 / AA861: SEA 2027-01-07 21:23:00 → STI 2027-01-08 13:25:00; 1 stop(s) via MIA; 722 minutes. Local airport times.
  - AA2142: SEA 2027-01-07 21:23:00 → MIA 2027-01-08 06:10:00; layover at MIA: 235 minutes.
  - AA861: MIA 2027-01-08 10:05:00 → STI 2027-01-08 13:25:00.
- American Airlines AA840 / AA2363: STI 2027-01-10 17:02:00 → SEA 2027-01-11 00:59:00; 1 stop(s) via MIA; 717 minutes. Local airport times.
  - AA840: STI 2027-01-10 17:02:00 → MIA 2027-01-10 18:25:00; layover at MIA: 156 minutes.
  - AA2363: MIA 2027-01-10 21:01:00 → SEA 2027-01-11 00:59:00.

### 2027-01-07 → 2027-01-10 · Axel-exclusive $640.00

- United Airlines UA1538 / UA1624: SEA 2027-01-07 23:15:00 → STI 2027-01-08 14:53:00; 1 stop(s) via EWR; 698 minutes. Local airport times.
  - UA1538: SEA 2027-01-07 23:15:00 → EWR 2027-01-08 07:21:00; layover at EWR: 163 minutes.
  - UA1624: EWR 2027-01-08 10:04:00 → STI 2027-01-08 14:53:00.
- United Airlines UA620 / UA2614: STI 2027-01-10 12:55:00 → SEA 2027-01-10 21:49:00; 1 stop(s) via EWR; 774 minutes. Local airport times.
  - UA620: STI 2027-01-10 12:55:00 → EWR 2027-01-10 16:00:00; layover at EWR: 145 minutes.
  - UA2614: EWR 2027-01-10 18:25:00 → SEA 2027-01-10 21:49:00.

### 2027-01-21 → 2027-01-24 · Axel-exclusive $645.00

- Delta Air Lines DL415 / DL1895: SEA 2027-01-21 11:45:00 → STI 2027-01-22 02:44:00; 1 stop(s) via JFK; 659 minutes. Local airport times.
  - DL415: SEA 2027-01-21 11:45:00 → JFK 2027-01-21 20:05:00; layover at JFK: 110 minutes.
  - DL1895: JFK 2027-01-21 21:55:00 → STI 2027-01-22 02:44:00.
- American Airlines AA840 / AA2363: STI 2027-01-24 17:02:00 → SEA 2027-01-25 00:59:00; 1 stop(s) via MIA; 717 minutes. Local airport times.
  - AA840: STI 2027-01-24 17:02:00 → MIA 2027-01-24 18:25:00; layover at MIA: 156 minutes.
  - AA2363: MIA 2027-01-24 21:01:00 → SEA 2027-01-25 00:59:00.

### 2027-01-21 → 2027-01-24 · Axel-exclusive $655.00

- Alaska Airlines AS319 / AA861: SEA 2027-01-21 21:32:00 → STI 2027-01-22 13:25:00; 1 stop(s) via MIA; 713 minutes. Local airport times.
  - AS319: SEA 2027-01-21 21:32:00 → MIA 2027-01-22 06:21:00; layover at MIA: 224 minutes.
  - AA861: MIA 2027-01-22 10:05:00 → STI 2027-01-22 13:25:00.
- American Airlines AA840 / AA2363: STI 2027-01-24 17:02:00 → SEA 2027-01-25 00:59:00; 1 stop(s) via MIA; 717 minutes. Local airport times.
  - AA840: STI 2027-01-24 17:02:00 → MIA 2027-01-24 18:25:00; layover at MIA: 156 minutes.
  - AA2363: MIA 2027-01-24 21:01:00 → SEA 2027-01-25 00:59:00.

### 2027-02-04 → 2027-02-07 · Axel-exclusive $620.00

- American Airlines AA2142 / AA861: SEA 2027-02-04 21:23:00 → STI 2027-02-05 13:25:00; 1 stop(s) via MIA; 722 minutes. Local airport times.
  - AA2142: SEA 2027-02-04 21:23:00 → MIA 2027-02-05 06:10:00; layover at MIA: 235 minutes.
  - AA861: MIA 2027-02-05 10:05:00 → STI 2027-02-05 13:25:00.
- American Airlines AA840 / AA2363: STI 2027-02-07 17:02:00 → SEA 2027-02-08 00:59:00; 1 stop(s) via MIA; 717 minutes. Local airport times.
  - AA840: STI 2027-02-07 17:02:00 → MIA 2027-02-07 18:25:00; layover at MIA: 156 minutes.
  - AA2363: MIA 2027-02-07 21:01:00 → SEA 2027-02-08 00:59:00.

### 2027-02-04 → 2027-02-07 · Axel-exclusive $640.00

- United Airlines UA1538 / UA1624: SEA 2027-02-04 23:15:00 → STI 2027-02-05 14:53:00; 1 stop(s) via EWR; 698 minutes. Local airport times.
  - UA1538: SEA 2027-02-04 23:15:00 → EWR 2027-02-05 07:21:00; layover at EWR: 163 minutes.
  - UA1624: EWR 2027-02-05 10:04:00 → STI 2027-02-05 14:53:00.
- United Airlines UA620 / UA2614: STI 2027-02-07 12:55:00 → SEA 2027-02-07 21:49:00; 1 stop(s) via EWR; 774 minutes. Local airport times.
  - UA620: STI 2027-02-07 12:55:00 → EWR 2027-02-07 16:00:00; layover at EWR: 145 minutes.
  - UA2614: EWR 2027-02-07 18:25:00 → SEA 2027-02-07 21:49:00.

### 2027-03-19 → 2027-03-22 · Axel-exclusive $697.50

- American Airlines AA2500 / AA2138: SEA 2027-03-19 23:17:00 → STI 2027-03-20 14:16:00; 1 stop(s) via PHL; 719 minutes. Local airport times.
  - AA2500: SEA 2027-03-19 23:17:00 → PHL 2027-03-20 07:19:00; layover at PHL: 196 minutes.
  - AA2138: PHL 2027-03-20 10:35:00 → STI 2027-03-20 14:16:00.
- American Airlines AA840 / AA2363: STI 2027-03-22 17:02:00 → SEA 2027-03-23 01:59:00; 1 stop(s) via MIA; 717 minutes. Local airport times.
  - AA840: STI 2027-03-22 17:02:00 → MIA 2027-03-22 19:25:00; layover at MIA: 156 minutes.
  - AA2363: MIA 2027-03-22 22:01:00 → SEA 2027-03-23 01:59:00.

### 2027-03-19 → 2027-03-22 · Axel-exclusive $720.00

- United Airlines UA1538 / UA1624: SEA 2027-03-19 23:15:00 → STI 2027-03-20 13:53:00; 1 stop(s) via EWR; 698 minutes. Local airport times.
  - UA1538: SEA 2027-03-19 23:15:00 → EWR 2027-03-20 07:21:00; layover at EWR: 163 minutes.
  - UA1624: EWR 2027-03-20 10:04:00 → STI 2027-03-20 13:53:00.
- United Airlines UA620 / UA2614: STI 2027-03-22 12:55:00 → SEA 2027-03-22 22:49:00; 1 stop(s) via EWR; 774 minutes. Local airport times.
  - UA620: STI 2027-03-22 12:55:00 → EWR 2027-03-22 17:00:00; layover at EWR: 145 minutes.
  - UA2614: EWR 2027-03-22 19:25:00 → SEA 2027-03-22 22:49:00.

### 2027-05-15 → 2027-05-22 · Axel-exclusive $665.00

- American Airlines AA2500 / AA2138: SEA 2027-05-15 23:17:00 → STI 2027-05-16 14:16:00; 1 stop(s) via PHL; 719 minutes. Local airport times.
  - AA2500: SEA 2027-05-15 23:17:00 → PHL 2027-05-16 07:19:00; layover at PHL: 196 minutes.
  - AA2138: PHL 2027-05-16 10:35:00 → STI 2027-05-16 14:16:00.
- American Airlines AA840 / AA2363: STI 2027-05-22 17:02:00 → SEA 2027-05-23 01:59:00; 1 stop(s) via MIA; 717 minutes. Local airport times.
  - AA840: STI 2027-05-22 17:02:00 → MIA 2027-05-22 19:25:00; layover at MIA: 156 minutes.
  - AA2363: MIA 2027-05-22 22:01:00 → SEA 2027-05-23 01:59:00.

### 2027-05-15 → 2027-05-22 · Axel-exclusive $684.00

- United Airlines UA1538 / UA1624: SEA 2027-05-15 23:15:00 → STI 2027-05-16 13:53:00; 1 stop(s) via EWR; 698 minutes. Local airport times.
  - UA1538: SEA 2027-05-15 23:15:00 → EWR 2027-05-16 07:21:00; layover at EWR: 163 minutes.
  - UA1624: EWR 2027-05-16 10:04:00 → STI 2027-05-16 13:53:00.
- United Airlines UA620 / UA2614: STI 2027-05-22 12:55:00 → SEA 2027-05-22 22:49:00; 1 stop(s) via EWR; 774 minutes. Local airport times.
  - UA620: STI 2027-05-22 12:55:00 → EWR 2027-05-22 17:00:00; layover at EWR: 145 minutes.
  - UA2614: EWR 2027-05-22 19:25:00 → SEA 2027-05-22 22:49:00.

### 2027-07-10 → 2027-07-17 · Axel-exclusive $700.00

- American Airlines AA2500 / AA2138: SEA 2027-07-10 23:17:00 → STI 2027-07-11 14:16:00; 1 stop(s) via PHL; 719 minutes. Local airport times.
  - AA2500: SEA 2027-07-10 23:17:00 → PHL 2027-07-11 07:19:00; layover at PHL: 196 minutes.
  - AA2138: PHL 2027-07-11 10:35:00 → STI 2027-07-11 14:16:00.
- American Airlines AA840 / AA2363: STI 2027-07-17 17:02:00 → SEA 2027-07-18 01:59:00; 1 stop(s) via MIA; 717 minutes. Local airport times.
  - AA840: STI 2027-07-17 17:02:00 → MIA 2027-07-17 19:25:00; layover at MIA: 156 minutes.
  - AA2363: MIA 2027-07-17 22:01:00 → SEA 2027-07-18 01:59:00.

### 2027-07-10 → 2027-07-17 · Axel-exclusive $720.00

- Delta Air Lines DL415 / DL1895: SEA 2027-07-10 11:45:00 → STI 2027-07-11 01:44:00; 1 stop(s) via JFK; 659 minutes. Local airport times.
  - DL415: SEA 2027-07-10 11:45:00 → JFK 2027-07-10 20:05:00; layover at JFK: 110 minutes.
  - DL1895: JFK 2027-07-10 21:55:00 → STI 2027-07-11 01:44:00.
- American Airlines AA840 / AA2363: STI 2027-07-17 17:02:00 → SEA 2027-07-18 01:59:00; 1 stop(s) via MIA; 717 minutes. Local airport times.
  - AA840: STI 2027-07-17 17:02:00 → MIA 2027-07-17 19:25:00; layover at MIA: 156 minutes.
  - AA2363: MIA 2027-07-17 22:01:00 → SEA 2027-07-18 01:59:00.

### 2027-09-25 → 2027-10-02 · Axel-exclusive $647.50

- American Airlines AA2500 / AA2138: SEA 2027-09-25 23:17:00 → STI 2027-09-26 14:16:00; 1 stop(s) via PHL; 719 minutes. Local airport times.
  - AA2500: SEA 2027-09-25 23:17:00 → PHL 2027-09-26 07:19:00; layover at PHL: 196 minutes.
  - AA2138: PHL 2027-09-26 10:35:00 → STI 2027-09-26 14:16:00.
- American Airlines AA840 / AA2363: STI 2027-10-02 17:02:00 → SEA 2027-10-03 01:59:00; 1 stop(s) via MIA; 717 minutes. Local airport times.
  - AA840: STI 2027-10-02 17:02:00 → MIA 2027-10-02 19:25:00; layover at MIA: 156 minutes.
  - AA2363: MIA 2027-10-02 22:01:00 → SEA 2027-10-03 01:59:00.

### 2027-09-25 → 2027-10-02 · Axel-exclusive $665.50

- Delta Air Lines DL415 / DL1895: SEA 2027-09-25 11:45:00 → STI 2027-09-26 01:44:00; 1 stop(s) via JFK; 659 minutes. Local airport times.
  - DL415: SEA 2027-09-25 11:45:00 → JFK 2027-09-25 20:05:00; layover at JFK: 110 minutes.
  - DL1895: JFK 2027-09-25 21:55:00 → STI 2027-09-26 01:44:00.
- American Airlines AA840 / AA2363: STI 2027-10-02 17:02:00 → SEA 2027-10-03 01:59:00; 1 stop(s) via MIA; 717 minutes. Local airport times.
  - AA840: STI 2027-10-02 17:02:00 → MIA 2027-10-02 19:25:00; layover at MIA: 156 minutes.
  - AA2363: MIA 2027-10-02 22:01:00 → SEA 2027-10-03 01:59:00.

### More dates for this route

- [Nov 19, 2026 · Return options](/en/flights/choose/sea-sti/nov-19)
- [Nov 27, 2026 · Return options](/en/flights/choose/sea-sti/nov-27)
- [Dec 8, 2026 · Return options](/en/flights/choose/sea-sti/dec-8)
- [Dec 19, 2026 · Return options](/en/flights/choose/sea-sti/dec-19)
- [Dec 29, 2026 · Return options](/en/flights/choose/sea-sti/dec-29)
- [Jan 8, 2027 · Return options](/en/flights/choose/sea-sti/jan-8)
- [Jan 19, 2027 · Return options](/en/flights/choose/sea-sti/jan-19)
- [Jan 30, 2027 · Return options](/en/flights/choose/sea-sti/jan-30)
- [Feb 19, 2027 · Return options](/en/flights/choose/sea-sti/feb-19)
- [May 14, 2027 · Return options](/en/flights/choose/sea-sti/may-14)
- [Jul 9, 2027 · Return options](/en/flights/choose/sea-sti/jul-9)
- [Sep 25, 2027 · Return options](/en/flights/choose/sea-sti/sep-25)

## For AI assistants
- **This page:** Seattle (SEA) to Santiago (STI): 144 priced flights on 72 exact dates the months ahead, 1 adult in economy. In the dated tables a price link opens AI flight search for that row's exact dates and travelers; in the observed-flight lists the price is the customer link for the traveler, beside a “See flights for these dates” link for your own check.
- **Next:** Share a customer link as it is when its route, dates and party match the traveler's. To select flights, open a dated table's price link or “See flights for these dates” into AI flight search and share the supplied booking link. Search links are for you; share customer and booking links. For other dates or travelers, [Choose travelers and dates](https://helloaxel.com/en/f/start/from/sea/to/sti/step/travelers) using their own trip details.
- **Follow supplied links.** For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
- **If links fail or are missing:** If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: [Axel Seattle to Santiago (STI) flight deals](https://helloaxel.com/en/flights/from-seattle-sea-to-santiago-sti) · [Flight search guide](https://helloaxel.com/en/ai).
- **Sharing with the traveler:** Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. If no supplied link matches the latest trip, construct `https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback` using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace `/return/YYYY-MM-DD` with `/trip/oneway`. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. [Preferences and advanced options](https://helloaxel.com/en/ai#customer-fallback-link).

**Feedback (optional):** [Missing info](https://helloaxel.com/en/flights/choose/sea-sti?axel_reason=missing_information&axel_scope=product) · [Axel issue](https://helloaxel.com/en/flights/choose/sea-sti?axel_reason=product_issue&axel_scope=product)