# San Francisco (SFO) to Seattle (SEA), Jan 20, 2027: from $85 one way

San Francisco (SFO) to Seattle (SEA), Jan 20, 2027: from $85 one way on Axel, checked Oct 29, 2026. Lowest published fare: $85 one way, Axel-exclusive, Frontier Airlines, 1 stop, Jan 20, 2027, 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.

**See flights for these dates:** each price link opens AI flight search for that row's exact dates and travelers. Select the complete itinerary there.

| Exact travel dates | Airline | Flights | Times, duration, stops | Total price | Price issued (UTC) |
| --- | --- | --- | --- | ---: | --- |
| 2027-01-20 · one way | Alaska Airlines | AS591 | 07:00:00→09:16:00 2h 16m nonstop | [Axel-exclusive $115.00](https://helloaxel.com/en/f/start/from/sfo/to/sea/depart/january-20-2027/trip/one-way/adults/1/cabin/economy) | 2026-10-29T01:19:49Z |
| 2027-01-20 · one way | Delta Air Lines | DL4118 | 14:20:00→16:44:00 2h 24m nonstop | [Axel-exclusive $120.00](https://helloaxel.com/en/f/start/from/sfo/to/sea/depart/january-20-2027/trip/one-way/adults/1/cabin/economy) | 2026-10-29T01:19:49Z |
| 2027-01-20 · one way | United Airlines | UA1896 | 20:47:00→22:57:00 2h 10m nonstop | [Axel-exclusive $125.00](https://helloaxel.com/en/f/start/from/sfo/to/sea/depart/january-20-2027/trip/one-way/adults/1/cabin/economy) | 2026-10-29T01:19:49Z |
| 2027-01-20 · one way | Frontier Airlines | F91230 + F91175 | 06:02:00→15:12:00 9h 10m 1 stop via DEN | [Axel-exclusive $85.00](https://helloaxel.com/en/f/start/from/sfo/to/sea/depart/january-20-2027/trip/one-way/adults/1/cabin/economy) | 2026-10-29T01:19:49Z |
| 2027-01-20 · one way | Air Canada | AC567 + AC8810 | 14:45:00→21:57:00 7h 12m 1 stop via YVR | [Axel-exclusive $215.00](https://helloaxel.com/en/f/start/from/sfo/to/sea/depart/january-20-2027/trip/one-way/adults/1/cabin/economy) | 2026-10-29T01:19:49Z |
| 2027-01-20 · one way | Alaska Airlines | AS630 | 14:37:00→16:52:00 2h 15m nonstop | [Axel-exclusive $115.00](https://helloaxel.com/en/f/start/from/sfo/to/sea/depart/january-20-2027/trip/one-way/adults/1/cabin/economy) | 2026-10-29T01:19:49Z |
| 2027-01-20 · one way | Delta Air Lines | DL1356 | 10:41:00→13:00:00 2h 19m nonstop | [Axel-exclusive $120.00](https://helloaxel.com/en/f/start/from/sfo/to/sea/depart/january-20-2027/trip/one-way/adults/1/cabin/economy) | 2026-10-29T01:19:49Z |
| 2027-01-20 · one way | United Airlines | UA745 | 10:05:00→12:22:00 2h 17m nonstop | [Axel-exclusive $125.00](https://helloaxel.com/en/f/start/from/sfo/to/sea/depart/january-20-2027/trip/one-way/adults/1/cabin/economy) | 2026-10-29T01:19:49Z |
| 2027-01-20 · one way | Alaska Airlines | AS1410 + AS3217 | 07:40:00→12:09:00 4h 29m 1 stop via PDX | [Axel-exclusive $135.00](https://helloaxel.com/en/f/start/from/sfo/to/sea/depart/january-20-2027/trip/one-way/adults/1/cabin/economy) | 2026-10-29T01:19:49Z |
| 2027-01-20 · one way | Alaska Airlines | AS3124 + AS295 | 13:39:00→21:30:00 7h 51m 1 stop via PSP | [Axel-exclusive $135.00](https://helloaxel.com/en/f/start/from/sfo/to/sea/depart/january-20-2027/trip/one-way/adults/1/cabin/economy) | 2026-10-29T01:19:49Z |
| 2027-01-20 · one way | United Airlines | UA2259 + AC8804 | 08:31:00→14:32:00 6h 01m 1 stop via YVR | [Axel-exclusive $155.00](https://helloaxel.com/en/f/start/from/sfo/to/sea/depart/january-20-2027/trip/one-way/adults/1/cabin/economy) | 2026-10-29T01:19:49Z |
| 2027-01-20 · one way | United Airlines | UA2127 + UA726 | 05:50:00→11:26:00 5h 36m 1 stop via LAX | [Axel-exclusive $155.00](https://helloaxel.com/en/f/start/from/sfo/to/sea/depart/january-20-2027/trip/one-way/adults/1/cabin/economy) | 2026-10-29T01:19:49Z |

[Route overview: San Francisco Bay Area to Seattle (SEA) flight deals](/en/flights/from-san-francisco-bay-area-to-seattle-sea)

### 2027-01-20 · one way · Axel-exclusive $115.00

- Alaska Airlines AS591: SFO 2027-01-20 07:00:00 → SEA 2027-01-20 09:16:00; nonstop; 136 minutes. Local airport times.

### 2027-01-20 · one way · Axel-exclusive $120.00

- Delta Air Lines DL4118: SFO 2027-01-20 14:20:00 → SEA 2027-01-20 16:44:00; nonstop; 144 minutes. Local airport times.

### 2027-01-20 · one way · Axel-exclusive $125.00

- United Airlines UA1896: SFO 2027-01-20 20:47:00 → SEA 2027-01-20 22:57:00; nonstop; 130 minutes. Local airport times.

### 2027-01-20 · one way · Axel-exclusive $85.00

- Frontier Airlines F91230 / F91175: SFO 2027-01-20 06:02:00 → SEA 2027-01-20 15:12:00; 1 stop(s) via DEN; 550 minutes. Local airport times.
  - F91230: SFO 2027-01-20 06:02:00 → DEN 2027-01-20 09:40:00; layover at DEN: 204 minutes.
  - F91175: DEN 2027-01-20 13:04:00 → SEA 2027-01-20 15:12:00.

### 2027-01-20 · one way · Axel-exclusive $215.00

- Air Canada AC567 / AC8810: SFO 2027-01-20 14:45:00 → SEA 2027-01-20 21:57:00; 1 stop(s) via YVR; 432 minutes. Local airport times.
  - AC567: SFO 2027-01-20 14:45:00 → YVR 2027-01-20 18:05:00; layover at YVR: 225 minutes.
  - AC8810: YVR 2027-01-20 21:50:00 → SEA 2027-01-20 21:57:00.

### 2027-01-20 · one way · Axel-exclusive $115.00

- Alaska Airlines AS630: SFO 2027-01-20 14:37:00 → SEA 2027-01-20 16:52:00; nonstop; 135 minutes. Local airport times.

### 2027-01-20 · one way · Axel-exclusive $120.00

- Delta Air Lines DL1356: SFO 2027-01-20 10:41:00 → SEA 2027-01-20 13:00:00; nonstop; 139 minutes. Local airport times.

### 2027-01-20 · one way · Axel-exclusive $125.00

- United Airlines UA745: SFO 2027-01-20 10:05:00 → SEA 2027-01-20 12:22:00; nonstop; 137 minutes. Local airport times.

### 2027-01-20 · one way · Axel-exclusive $135.00

- Alaska Airlines AS1410 / AS3217: SFO 2027-01-20 07:40:00 → SEA 2027-01-20 12:09:00; 1 stop(s) via PDX; 269 minutes. Local airport times.
  - AS1410: SFO 2027-01-20 07:40:00 → PDX 2027-01-20 09:27:00; layover at PDX: 87 minutes.
  - AS3217: PDX 2027-01-20 10:54:00 → SEA 2027-01-20 12:09:00.

### 2027-01-20 · one way · Axel-exclusive $135.00

- Alaska Airlines AS3124 / AS295: SFO 2027-01-20 13:39:00 → SEA 2027-01-20 21:30:00; 1 stop(s) via PSP; 471 minutes. Local airport times.
  - AS3124: SFO 2027-01-20 13:39:00 → PSP 2027-01-20 15:17:00; layover at PSP: 195 minutes.
  - AS295: PSP 2027-01-20 18:32:00 → SEA 2027-01-20 21:30:00.

### 2027-01-20 · one way · Axel-exclusive $155.00

- United Airlines UA2259 / AC8804: SFO 2027-01-20 08:31:00 → SEA 2027-01-20 14:32:00; 1 stop(s) via YVR; 361 minutes. Local airport times.
  - UA2259: SFO 2027-01-20 08:31:00 → YVR 2027-01-20 12:00:00; layover at YVR: 150 minutes.
  - AC8804: YVR 2027-01-20 14:30:00 → SEA 2027-01-20 14:32:00.

### 2027-01-20 · one way · Axel-exclusive $155.00

- United Airlines UA2127 / UA726: SFO 2027-01-20 05:50:00 → SEA 2027-01-20 11:26:00; 1 stop(s) via LAX; 336 minutes. Local airport times.
  - UA2127: SFO 2027-01-20 05:50:00 → LAX 2027-01-20 07:22:00; layover at LAX: 65 minutes.
  - UA726: LAX 2027-01-20 08:27:00 → SEA 2027-01-20 11:26:00.

**Travelers:** prices on this page are totals for 1 adult. For a different party, open this trip for [2 adults](https://helloaxel.com/en/f/start/from/sfo/to/sea/depart/january-20-2027/trip/one-way/adults/2/cabin/economy) · [3 adults](https://helloaxel.com/en/f/start/from/sfo/to/sea/depart/january-20-2027/trip/one-way/adults/3/cabin/economy) · [4 adults](https://helloaxel.com/en/f/start/from/sfo/to/sea/depart/january-20-2027/trip/one-way/adults/4/cabin/economy) · [2 adults + 1 child](https://helloaxel.com/en/f/start/from/sfo/to/sea/depart/january-20-2027/trip/one-way/adults/2/children/1/cabin/economy) · [2 adults + 2 children](https://helloaxel.com/en/f/start/from/sfo/to/sea/depart/january-20-2027/trip/one-way/adults/2/children/2/cabin/economy); each link opens AI flight search for these dates and those travelers, and the customer link to share comes from those results.

### Explore this route

- [All dates for this route](/en/flights/choose/sfo-sea)
- [Jan 19, 2027 · Return options](/en/flights/choose/sfo-sea/jan-19)
- [Jan 21, 2027 · Return options](/en/flights/choose/sfo-sea/jan-21)
- [Hotels in Seattle with Axel](https://helloaxel.com/en/hotels/destinations/seattle)

## For AI assistants
- **This page:** San Francisco (SFO) to Seattle (SEA) · Jan 20, 2027 · one way: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
- **Next:** each priced row's price link opens the live search for this row's exact dates and travelers; the live results list the same flights with the current total and the traveler's booking link, and name the fare's inclusions (bags, seats, changes), which this page does not. A changed price or flight shows there. Other dates or travelers are not priced here: [Choose travelers and dates](https://helloaxel.com/en/f/start/from/sfo/to/sea/step/travelers) prices the traveler's own trip.
- **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.
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**Feedback (optional):** [Missing info](https://helloaxel.com/en/flights/choose/sfo-sea/jan-20/one-way?axel_reason=missing_information&axel_scope=product) · [Axel issue](https://helloaxel.com/en/flights/choose/sfo-sea/jan-20/one-way?axel_reason=product_issue&axel_scope=product)