# Seattle (SEA) to Saint Louis (STL), Dec 29, 2026: round trips from $364, one way from $224 Seattle (SEA) to Saint Louis (STL), Dec 29, 2026: round trips from $364, one way from $224 on Axel, checked Oct 29, 2026. Lowest published fares: $364 round trip, Axel-exclusive, Southwest Airlines, 1 stop, Dec 29, 2026 – Jan 4, 2027; $224 one way, Axel-exclusive, Southwest Airlines, 1 stop, Dec 29, 2026; 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. **Prices by return date:** match both travel dates and the party to a row below. Each total is for that exact trip, issued at the time shown. **Date links** open published trip details for exploration. **Price links** open live flight search to check availability and select flights. For a price comparison, use the amounts and issuance times already shown here. | Exact travel dates | Airline | Flights | Times, duration, stops | Total price | Price issued (UTC) | | --- | --- | --- | --- | ---: | --- | | [2026-12-29 · one way](https://helloaxel.com/en/flights/choose/sea-stl/dec-29/one-way) | Alaska Airlines | AS618 | 09:41:00→15:34:00 3h 53m nonstop | [Axel-exclusive $252.00](https://helloaxel.com/en/f/start/from/sea/to/stl/depart/december-29-2026/trip/one-way/adults/1/cabin/economy) | 2026-10-29T01:16:43Z | | [2026-12-29 · one way](https://helloaxel.com/en/flights/choose/sea-stl/dec-29/one-way) | Southwest Airlines | WN3823 + WN1844 | 13:35:00→21:10:00 5h 35m 1 stop via DEN | [Axel-exclusive $224.00](https://helloaxel.com/en/f/start/from/sea/to/stl/depart/december-29-2026/trip/one-way/adults/1/cabin/economy) | 2026-10-29T01:16:43Z | | [2026-12-29 → 2026-12-30](https://helloaxel.com/en/flights/choose/sea-stl/dec-29/dec-30) | Alaska Airlines | AS618 / AS615 | 09:41:00→15:34:00 3h 53m nonstop · 06:00:00→08:36:00 4h 36m nonstop | [Axel-exclusive $490.00](https://helloaxel.com/en/f/start/from/sea/to/stl/depart/december-29-2026/return/december-30-2026/adults/1/cabin/economy) | 2026-10-29T01:16:43Z | | [2026-12-29 → 2026-12-30](https://helloaxel.com/en/flights/choose/sea-stl/dec-29/dec-30) | Southwest Airlines | WN3823 + WN1844 / WN4144 + WN3141 | 13:35:00→21:10:00 5h 35m 1 stop via DEN · 17:25:00→22:50:00 7h 25m 1 stop via DEN | [Axel-exclusive $434.00](https://helloaxel.com/en/f/start/from/sea/to/stl/depart/december-29-2026/return/december-30-2026/adults/1/cabin/economy) | 2026-10-29T01:16:43Z | | [2026-12-29 → 2026-12-31](https://helloaxel.com/en/flights/choose/sea-stl/dec-29/dec-31) | Alaska Airlines | AS618 / AS615 | 09:41:00→15:34:00 3h 53m nonstop · 06:04:00→08:50:00 4h 46m nonstop | [Axel-exclusive $490.00](https://helloaxel.com/en/f/start/from/sea/to/stl/depart/december-29-2026/return/december-31-2026/adults/1/cabin/economy) | 2026-10-29T01:16:43Z | | [2026-12-29 → 2026-12-31](https://helloaxel.com/en/flights/choose/sea-stl/dec-29/dec-31) | Southwest Airlines | WN3823 + WN1844 / WN4144 + WN3141 | 13:35:00→21:10:00 5h 35m 1 stop via DEN · 17:25:00→22:50:00 7h 25m 1 stop via DEN | [Axel-exclusive $434.00](https://helloaxel.com/en/f/start/from/sea/to/stl/depart/december-29-2026/return/december-31-2026/adults/1/cabin/economy) | 2026-10-29T01:16:43Z | | [2026-12-29 → 2027-01-01](https://helloaxel.com/en/flights/choose/sea-stl/dec-29/jan-1) | Alaska Airlines | AS618 / AS615 | 09:41:00→15:34:00 3h 53m nonstop · 06:00:00→08:42:00 4h 42m nonstop | [Axel-exclusive $477.75](https://helloaxel.com/en/f/start/from/sea/to/stl/depart/december-29-2026/return/january-1-2027/adults/1/cabin/economy) | 2026-10-29T01:16:43Z | | [2026-12-29 → 2027-01-01](https://helloaxel.com/en/flights/choose/sea-stl/dec-29/jan-1) | Southwest Airlines | WN3823 + WN1844 / WN4144 + WN3141 | 13:35:00→21:10:00 5h 35m 1 stop via DEN · 17:25:00→22:50:00 7h 25m 1 stop via DEN | [Axel-exclusive $423.15](https://helloaxel.com/en/f/start/from/sea/to/stl/depart/december-29-2026/return/january-1-2027/adults/1/cabin/economy) | 2026-10-29T01:16:43Z | | [2026-12-29 → 2027-01-02](https://helloaxel.com/en/flights/choose/sea-stl/dec-29/jan-2) | Alaska Airlines | AS618 / AS615 | 09:41:00→15:34:00 3h 53m nonstop · 06:00:00→08:42:00 4h 42m nonstop | [Axel-exclusive $477.75](https://helloaxel.com/en/f/start/from/sea/to/stl/depart/december-29-2026/return/january-2-2027/adults/1/cabin/economy) | 2026-10-29T01:16:43Z | | [2026-12-29 → 2027-01-02](https://helloaxel.com/en/flights/choose/sea-stl/dec-29/jan-2) | Southwest Airlines | WN3823 + WN1844 / WN2467 + WN2455 | 13:35:00→21:10:00 5h 35m 1 stop via DEN · 18:40:00→01:00:00 8h 20m 1 stop via PHX | [Axel-exclusive $423.15](https://helloaxel.com/en/f/start/from/sea/to/stl/depart/december-29-2026/return/january-2-2027/adults/1/cabin/economy) | 2026-10-29T01:16:43Z | | [2026-12-29 → 2027-01-03](https://helloaxel.com/en/flights/choose/sea-stl/dec-29/jan-3) | Alaska Airlines | AS618 / AS618 | 09:41:00→15:34:00 3h 53m nonstop · 15:23:00→17:53:00 4h 30m nonstop | [Axel-exclusive $477.75](https://helloaxel.com/en/f/start/from/sea/to/stl/depart/december-29-2026/return/january-3-2027/adults/1/cabin/economy) | 2026-10-29T01:16:43Z | | [2026-12-29 → 2027-01-03](https://helloaxel.com/en/flights/choose/sea-stl/dec-29/jan-3) | Southwest Airlines | WN3823 + WN1844 / WN4144 + WN3141 | 13:35:00→21:10:00 5h 35m 1 stop via DEN · 17:25:00→22:50:00 7h 25m 1 stop via DEN | [Axel-exclusive $423.15](https://helloaxel.com/en/f/start/from/sea/to/stl/depart/december-29-2026/return/january-3-2027/adults/1/cabin/economy) | 2026-10-29T01:16:43Z | | [2026-12-29 → 2027-01-04](https://helloaxel.com/en/flights/choose/sea-stl/dec-29/jan-4) | Alaska Airlines | AS618 / AS669 | 09:41:00→15:34:00 3h 53m nonstop · 06:00:00→08:40:00 4h 40m nonstop | [Axel-exclusive $411.25](https://helloaxel.com/en/f/start/from/sea/to/stl/depart/december-29-2026/return/january-4-2027/adults/1/cabin/economy) | 2026-10-29T01:16:43Z | | [2026-12-29 → 2027-01-04](https://helloaxel.com/en/flights/choose/sea-stl/dec-29/jan-4) | Southwest Airlines | WN3823 + WN1844 / WN4144 + WN3141 | 13:35:00→21:10:00 5h 35m 1 stop via DEN · 17:25:00→22:50:00 7h 25m 1 stop via DEN | [Axel-exclusive $364.25](https://helloaxel.com/en/f/start/from/sea/to/stl/depart/december-29-2026/return/january-4-2027/adults/1/cabin/economy) | 2026-10-29T01:16:43Z | | [2026-12-29 → 2027-01-05](https://helloaxel.com/en/flights/choose/sea-stl/dec-29/jan-5) | Alaska Airlines | AS618 / AS615 | 09:41:00→15:34:00 3h 53m nonstop · 06:00:00→08:42:00 4h 42m nonstop | [Axel-exclusive $411.25](https://helloaxel.com/en/f/start/from/sea/to/stl/depart/december-29-2026/return/january-5-2027/adults/1/cabin/economy) | 2026-10-29T01:16:43Z | | [2026-12-29 → 2027-01-05](https://helloaxel.com/en/flights/choose/sea-stl/dec-29/jan-5) | Southwest Airlines | WN3823 + WN1844 / WN4144 + WN3141 | 13:35:00→21:10:00 5h 35m 1 stop via DEN · 17:25:00→22:50:00 7h 25m 1 stop via DEN | [Axel-exclusive $364.25](https://helloaxel.com/en/f/start/from/sea/to/stl/depart/december-29-2026/return/january-5-2027/adults/1/cabin/economy) | 2026-10-29T01:16:43Z | | [2026-12-29 → 2027-01-06](https://helloaxel.com/en/flights/choose/sea-stl/dec-29/jan-6) | Alaska Airlines | AS618 / AS615 | 09:41:00→15:34:00 3h 53m nonstop · 06:00:00→08:36:00 4h 36m nonstop | [Axel-exclusive $411.25](https://helloaxel.com/en/f/start/from/sea/to/stl/depart/december-29-2026/return/january-6-2027/adults/1/cabin/economy) | 2026-10-29T01:16:43Z | | [2026-12-29 → 2027-01-06](https://helloaxel.com/en/flights/choose/sea-stl/dec-29/jan-6) | Southwest Airlines | WN3823 + WN1844 / WN4144 + WN3141 | 13:35:00→21:10:00 5h 35m 1 stop via DEN · 17:25:00→22:50:00 7h 25m 1 stop via DEN | [Axel-exclusive $364.25](https://helloaxel.com/en/f/start/from/sea/to/stl/depart/december-29-2026/return/january-6-2027/adults/1/cabin/economy) | 2026-10-29T01:16:43Z | | [2026-12-29 → 2027-01-07](https://helloaxel.com/en/flights/choose/sea-stl/dec-29/jan-7) | Alaska Airlines | AS618 / AS615 | 09:41:00→15:34:00 3h 53m nonstop · 06:04:00→08:50:00 4h 46m nonstop | [Axel-exclusive $411.25](https://helloaxel.com/en/f/start/from/sea/to/stl/depart/december-29-2026/return/january-7-2027/adults/1/cabin/economy) | 2026-10-29T01:16:43Z | | [2026-12-29 → 2027-01-07](https://helloaxel.com/en/flights/choose/sea-stl/dec-29/jan-7) | Southwest Airlines | WN3823 + WN1844 / WN4144 + WN3141 | 13:35:00→21:10:00 5h 35m 1 stop via DEN · 17:25:00→22:50:00 7h 25m 1 stop via DEN | [Axel-exclusive $364.25](https://helloaxel.com/en/f/start/from/sea/to/stl/depart/december-29-2026/return/january-7-2027/adults/1/cabin/economy) | 2026-10-29T01:16:43Z | | [2026-12-29 → 2027-01-08](https://helloaxel.com/en/flights/choose/sea-stl/dec-29/jan-8) | Alaska Airlines | AS618 / AS615 | 09:41:00→15:34:00 3h 53m nonstop · 06:00:00→08:42:00 4h 42m nonstop | [Axel-exclusive $411.25](https://helloaxel.com/en/f/start/from/sea/to/stl/depart/december-29-2026/return/january-8-2027/adults/1/cabin/economy) | 2026-10-29T01:16:43Z | | [2026-12-29 → 2027-01-08](https://helloaxel.com/en/flights/choose/sea-stl/dec-29/jan-8) | Southwest Airlines | WN3823 + WN1844 / WN4144 + WN3141 | 13:35:00→21:10:00 5h 35m 1 stop via DEN · 17:25:00→22:50:00 7h 25m 1 stop via DEN | [Axel-exclusive $364.25](https://helloaxel.com/en/f/start/from/sea/to/stl/depart/december-29-2026/return/january-8-2027/adults/1/cabin/economy) | 2026-10-29T01:16:43Z | | [2026-12-29 → 2027-01-09](https://helloaxel.com/en/flights/choose/sea-stl/dec-29/jan-9) | Alaska Airlines | AS618 / AS615 | 09:41:00→15:34:00 3h 53m nonstop · 06:00:00→08:42:00 4h 42m nonstop | [Axel-exclusive $411.25](https://helloaxel.com/en/f/start/from/sea/to/stl/depart/december-29-2026/return/january-9-2027/adults/1/cabin/economy) | 2026-10-29T01:16:43Z | | [2026-12-29 → 2027-01-09](https://helloaxel.com/en/flights/choose/sea-stl/dec-29/jan-9) | Southwest Airlines | WN3823 + WN1844 / WN2467 + WN2455 | 13:35:00→21:10:00 5h 35m 1 stop via DEN · 18:40:00→01:00:00 8h 20m 1 stop via PHX | [Axel-exclusive $364.25](https://helloaxel.com/en/f/start/from/sea/to/stl/depart/december-29-2026/return/january-9-2027/adults/1/cabin/economy) | 2026-10-29T01:16:43Z | | [2026-12-29 → 2027-01-10](https://helloaxel.com/en/flights/choose/sea-stl/dec-29/jan-10) | Alaska Airlines | AS618 / AS618 | 09:41:00→15:34:00 3h 53m nonstop · 15:23:00→17:53:00 4h 30m nonstop | [Axel-exclusive $411.25](https://helloaxel.com/en/f/start/from/sea/to/stl/depart/december-29-2026/return/january-10-2027/adults/1/cabin/economy) | 2026-10-29T01:16:43Z | | [2026-12-29 → 2027-01-10](https://helloaxel.com/en/flights/choose/sea-stl/dec-29/jan-10) | Southwest Airlines | WN3823 + WN1844 / WN4144 + WN3141 | 13:35:00→21:10:00 5h 35m 1 stop via DEN · 17:25:00→22:50:00 7h 25m 1 stop via DEN | [Axel-exclusive $364.25](https://helloaxel.com/en/f/start/from/sea/to/stl/depart/december-29-2026/return/january-10-2027/adults/1/cabin/economy) | 2026-10-29T01:16:43Z | | [2026-12-29 → 2027-01-11](https://helloaxel.com/en/flights/choose/sea-stl/dec-29/jan-11) | Alaska Airlines | AS618 / AS669 | 09:41:00→15:34:00 3h 53m nonstop · 06:00:00→08:40:00 4h 40m nonstop | [Axel-exclusive $411.25](https://helloaxel.com/en/f/start/from/sea/to/stl/depart/december-29-2026/return/january-11-2027/adults/1/cabin/economy) | 2026-10-29T01:16:43Z | | [2026-12-29 → 2027-01-11](https://helloaxel.com/en/flights/choose/sea-stl/dec-29/jan-11) | Southwest Airlines | WN3823 + WN1844 / WN4144 + WN3141 | 13:35:00→21:10:00 5h 35m 1 stop via DEN · 17:25:00→22:50:00 7h 25m 1 stop via DEN | [Axel-exclusive $364.25](https://helloaxel.com/en/f/start/from/sea/to/stl/depart/december-29-2026/return/january-11-2027/adults/1/cabin/economy) | 2026-10-29T01:16:43Z | | [2026-12-29 → 2027-01-12](https://helloaxel.com/en/flights/choose/sea-stl/dec-29/jan-12) | Alaska Airlines | AS618 / AS615 | 09:41:00→15:34:00 3h 53m nonstop · 06:00:00→08:42:00 4h 42m nonstop | [Axel-exclusive $411.25](https://helloaxel.com/en/f/start/from/sea/to/stl/depart/december-29-2026/return/january-12-2027/adults/1/cabin/economy) | 2026-10-29T01:16:43Z | | [2026-12-29 → 2027-01-12](https://helloaxel.com/en/flights/choose/sea-stl/dec-29/jan-12) | Southwest Airlines | WN3823 + WN1844 / WN4144 + WN3141 | 13:35:00→21:10:00 5h 35m 1 stop via DEN · 17:25:00→22:50:00 7h 25m 1 stop via DEN | [Axel-exclusive $364.25](https://helloaxel.com/en/f/start/from/sea/to/stl/depart/december-29-2026/return/january-12-2027/adults/1/cabin/economy) | 2026-10-29T01:16:43Z | ### Hotels in St. Louis for these trips **Hotels:** under a trip, hotels in St. Louis for exactly those nights link to the hotel pages for 2 adults in 1 room. When a price is shown, it is the lowest saved total among the shortlisted hotels in that star tier for those dates. - Hotels in St. Louis for these nights (Dec 29–30, 2026 · 1 night · 2 adults, 1 room): 3★ [Clayton Plaza Hotel & Extended Stay, $63 total](https://helloaxel.com/en/hotels/st-louis/clayton-plaza-hotel-extended-stay-1068323/2026-12-29/2026-12-30/2-adults) · 4★ [Hilton St. Louis at the Ballpark, $104 total](https://helloaxel.com/en/hotels/st-louis/hilton-st-louis-at-the-ballpark-1035797/2026-12-29/2026-12-30/2-adults) · 5★ [Four Seasons Hotel St Louis, $366 total](https://helloaxel.com/en/hotels/st-louis/four-seasons-hotel-st-louis-1390247/2026-12-29/2026-12-30/2-adults) - Hotels in St. Louis for these nights (Dec 29–31, 2026 · 2 nights · 2 adults, 1 room): 3★ [Clayton Plaza Hotel & Extended Stay, $125 total](https://helloaxel.com/en/hotels/st-louis/clayton-plaza-hotel-extended-stay-1068323/2026-12-29/2026-12-31/2-adults) · 4★ [Hilton St. Louis at the Ballpark, $209 total](https://helloaxel.com/en/hotels/st-louis/hilton-st-louis-at-the-ballpark-1035797/2026-12-29/2026-12-31/2-adults) · 5★ [Four Seasons Hotel St Louis, $732 total](https://helloaxel.com/en/hotels/st-louis/four-seasons-hotel-st-louis-1390247/2026-12-29/2026-12-31/2-adults) - Hotels in St. Louis for these nights (Dec 29 – Jan 1, 2027 · 3 nights · 2 adults, 1 room): 3★ [Clayton Plaza Hotel & Extended Stay, $199 total](https://helloaxel.com/en/hotels/st-louis/clayton-plaza-hotel-extended-stay-1068323/2026-12-29/2027-01-01/2-adults) · 4★ [CozySuites Central West End, $410 total](https://helloaxel.com/en/hotels/st-louis/cozysuites-central-west-end-1342947/2026-12-29/2027-01-01/2-adults) · 5★ [Four Seasons Hotel St Louis, $1,550 total](https://helloaxel.com/en/hotels/st-louis/four-seasons-hotel-st-louis-1390247/2026-12-29/2027-01-01/2-adults) - Hotels in St. Louis for these nights (Dec 29 – Jan 2, 2027 · 4 nights · 2 adults, 1 room): 3★ [Clayton Plaza Hotel & Extended Stay, $283 total](https://helloaxel.com/en/hotels/st-louis/clayton-plaza-hotel-extended-stay-1068323/2026-12-29/2027-01-02/2-adults) · 4★ [CozySuites Central West End, $569 total](https://helloaxel.com/en/hotels/st-louis/cozysuites-central-west-end-1342947/2026-12-29/2027-01-02/2-adults) · 5★ [Four Seasons Hotel St Louis, $1,838 total](https://helloaxel.com/en/hotels/st-louis/four-seasons-hotel-st-louis-1390247/2026-12-29/2027-01-02/2-adults) - Hotels in St. Louis for these nights (Dec 29 – Jan 3, 2027 · 5 nights · 2 adults, 1 room): 3★ [Clayton Plaza Hotel & Extended Stay, $367 total](https://helloaxel.com/en/hotels/st-louis/clayton-plaza-hotel-extended-stay-1068323/2026-12-29/2027-01-03/2-adults) · 4★ [The Westin St. Louis, $718 total](https://helloaxel.com/en/hotels/st-louis/the-westin-st-louis-1199215/2026-12-29/2027-01-03/2-adults) · 5★ [Four Seasons Hotel St Louis, $2,126 total](https://helloaxel.com/en/hotels/st-louis/four-seasons-hotel-st-louis-1390247/2026-12-29/2027-01-03/2-adults) - Hotels in St. Louis for these nights (Dec 29 – Jan 4, 2027 · 6 nights · 2 adults, 1 room): 3★ [Clayton Plaza Hotel & Extended Stay, $434 total](https://helloaxel.com/en/hotels/st-louis/clayton-plaza-hotel-extended-stay-1068323/2026-12-29/2027-01-04/2-adults) · 4★ [The Westin St. Louis, $824 total](https://helloaxel.com/en/hotels/st-louis/the-westin-st-louis-1199215/2026-12-29/2027-01-04/2-adults) · 5★ [Four Seasons Hotel St Louis, $2,414 total](https://helloaxel.com/en/hotels/st-louis/four-seasons-hotel-st-louis-1390247/2026-12-29/2027-01-04/2-adults) - Hotels in St. Louis for these nights (Dec 29 – Jan 5, 2027 · 7 nights · 2 adults, 1 room): 3★ [Clayton Plaza Hotel & Extended Stay, $500 total](https://helloaxel.com/en/hotels/st-louis/clayton-plaza-hotel-extended-stay-1068323/2026-12-29/2027-01-05/2-adults) · 4★ [The Westin St. Louis, $930 total](https://helloaxel.com/en/hotels/st-louis/the-westin-st-louis-1199215/2026-12-29/2027-01-05/2-adults) · 5★ [Four Seasons Hotel St Louis, $2,702 total](https://helloaxel.com/en/hotels/st-louis/four-seasons-hotel-st-louis-1390247/2026-12-29/2027-01-05/2-adults) - Hotels in St. Louis for these nights (Dec 29 – Jan 6, 2027 · 8 nights · 2 adults, 1 room): 3★ [Clayton Plaza Hotel & Extended Stay, $567 total](https://helloaxel.com/en/hotels/st-louis/clayton-plaza-hotel-extended-stay-1068323/2026-12-29/2027-01-06/2-adults) · 4★ [The Westin St. Louis, $1,037 total](https://helloaxel.com/en/hotels/st-louis/the-westin-st-louis-1199215/2026-12-29/2027-01-06/2-adults) · 5★ [Four Seasons Hotel St Louis, $2,990 total](https://helloaxel.com/en/hotels/st-louis/four-seasons-hotel-st-louis-1390247/2026-12-29/2027-01-06/2-adults) - Hotels in St. Louis for these nights (Dec 29 – Jan 7, 2027 · 9 nights · 2 adults, 1 room): 3★ [Clayton Plaza Hotel & Extended Stay, $641 total](https://helloaxel.com/en/hotels/st-louis/clayton-plaza-hotel-extended-stay-1068323/2026-12-29/2027-01-07/2-adults) · 4★ [The Westin St. Louis, $1,147 total](https://helloaxel.com/en/hotels/st-louis/the-westin-st-louis-1199215/2026-12-29/2027-01-07/2-adults) · 5★ [Four Seasons Hotel St Louis, $3,278 total](https://helloaxel.com/en/hotels/st-louis/four-seasons-hotel-st-louis-1390247/2026-12-29/2027-01-07/2-adults) - Hotels in St. Louis for these nights (Dec 29 – Jan 8, 2027 · 10 nights · 2 adults, 1 room): 3★ [Clayton Plaza Hotel & Extended Stay, $706 total](https://helloaxel.com/en/hotels/st-louis/clayton-plaza-hotel-extended-stay-1068323/2026-12-29/2027-01-08/2-adults) · 4★ [The Westin St. Louis, $1,251 total](https://helloaxel.com/en/hotels/st-louis/the-westin-st-louis-1199215/2026-12-29/2027-01-08/2-adults) · 5★ [Four Seasons Hotel St Louis, $3,566 total](https://helloaxel.com/en/hotels/st-louis/four-seasons-hotel-st-louis-1390247/2026-12-29/2027-01-08/2-adults) - Hotels in St. Louis for these nights (Dec 29 – Jan 9, 2027 · 11 nights · 2 adults, 1 room): 3★ [Clayton Plaza Hotel & Extended Stay, $781 total](https://helloaxel.com/en/hotels/st-louis/clayton-plaza-hotel-extended-stay-1068323/2026-12-29/2027-01-09/2-adults) · 4★ [The Westin St. Louis, $1,365 total](https://helloaxel.com/en/hotels/st-louis/the-westin-st-louis-1199215/2026-12-29/2027-01-09/2-adults) · 5★ [Four Seasons Hotel St Louis, $3,854 total](https://helloaxel.com/en/hotels/st-louis/four-seasons-hotel-st-louis-1390247/2026-12-29/2027-01-09/2-adults) - Hotels in St. Louis for these nights (Dec 29 – Jan 10, 2027 · 12 nights · 2 adults, 1 room): 3★ [Clayton Plaza Hotel & Extended Stay, $865 total](https://helloaxel.com/en/hotels/st-louis/clayton-plaza-hotel-extended-stay-1068323/2026-12-29/2027-01-10/2-adults) · 4★ [The Westin St. Louis, $1,479 total](https://helloaxel.com/en/hotels/st-louis/the-westin-st-louis-1199215/2026-12-29/2027-01-10/2-adults) · 5★ [Four Seasons Hotel St Louis, $4,140 total](https://helloaxel.com/en/hotels/st-louis/four-seasons-hotel-st-louis-1390247/2026-12-29/2027-01-10/2-adults) - Hotels in St. Louis for these nights (Dec 29 – Jan 11, 2027 · 13 nights · 2 adults, 1 room): 3★ [Clayton Plaza Hotel & Extended Stay, $939 total](https://helloaxel.com/en/hotels/st-louis/clayton-plaza-hotel-extended-stay-1068323/2026-12-29/2027-01-11/2-adults) · 4★ [The Westin St. Louis, $1,585 total](https://helloaxel.com/en/hotels/st-louis/the-westin-st-louis-1199215/2026-12-29/2027-01-11/2-adults) · 5★ [Four Seasons Hotel St Louis, $4,426 total](https://helloaxel.com/en/hotels/st-louis/four-seasons-hotel-st-louis-1390247/2026-12-29/2027-01-11/2-adults) - Hotels in St. Louis for these nights (Dec 29 – Jan 12, 2027 · 14 nights · 2 adults, 1 room): 3★ [Clayton Plaza Hotel & Extended Stay, $1,005 total](https://helloaxel.com/en/hotels/st-louis/clayton-plaza-hotel-extended-stay-1068323/2026-12-29/2027-01-12/2-adults) · 4★ [The Westin St. Louis, $1,687 total](https://helloaxel.com/en/hotels/st-louis/the-westin-st-louis-1199215/2026-12-29/2027-01-12/2-adults) · 5★ [Four Seasons Hotel St Louis, $4,850 total](https://helloaxel.com/en/hotels/st-louis/four-seasons-hotel-st-louis-1390247/2026-12-29/2027-01-12/2-adults) [All hotels in St. Louis](https://helloaxel.com/en/hotels/destinations/st-louis) [Route overview: Seattle to Saint Louis (STL) flight deals](/en/flights/from-seattle-sea-to-saint-louis-stl) ### 2026-12-29 · one way · Axel-exclusive $224.00 - Southwest Airlines WN3823 / WN1844: SEA 2026-12-29 13:35:00 → STL 2026-12-29 21:10:00; 1 stop(s) via DEN; 335 minutes. Local airport times. - WN3823: SEA 2026-12-29 13:35:00 → DEN 2026-12-29 17:05:00; layover at DEN: 60 minutes. - WN1844: DEN 2026-12-29 18:05:00 → STL 2026-12-29 21:10:00. ### 2026-12-29 · one way · Axel-exclusive $252.00 - Alaska Airlines AS618: SEA 2026-12-29 09:41:00 → STL 2026-12-29 15:34:00; nonstop; 233 minutes. Local airport times. ### 2026-12-29 → 2026-12-30 · Axel-exclusive $434.00 - Southwest Airlines WN3823 / WN1844: SEA 2026-12-29 13:35:00 → STL 2026-12-29 21:10:00; 1 stop(s) via DEN; 335 minutes. Local airport times. - WN3823: SEA 2026-12-29 13:35:00 → DEN 2026-12-29 17:05:00; layover at DEN: 60 minutes. - WN1844: DEN 2026-12-29 18:05:00 → STL 2026-12-29 21:10:00. - Southwest Airlines WN4144 / WN3141: STL 2026-12-30 17:25:00 → SEA 2026-12-30 22:50:00; 1 stop(s) via DEN; 445 minutes. Local airport times. - WN4144: STL 2026-12-30 17:25:00 → DEN 2026-12-30 18:55:00; layover at DEN: 105 minutes. - WN3141: DEN 2026-12-30 20:40:00 → SEA 2026-12-30 22:50:00. ### 2026-12-29 → 2026-12-30 · Axel-exclusive $490.00 - Alaska Airlines AS618: SEA 2026-12-29 09:41:00 → STL 2026-12-29 15:34:00; nonstop; 233 minutes. Local airport times. - Alaska Airlines AS615: STL 2026-12-30 06:00:00 → SEA 2026-12-30 08:36:00; nonstop; 276 minutes. Local airport times. ### 2026-12-29 → 2026-12-31 · Axel-exclusive $434.00 - Southwest Airlines WN3823 / WN1844: SEA 2026-12-29 13:35:00 → STL 2026-12-29 21:10:00; 1 stop(s) via DEN; 335 minutes. Local airport times. - WN3823: SEA 2026-12-29 13:35:00 → DEN 2026-12-29 17:05:00; layover at DEN: 60 minutes. - WN1844: DEN 2026-12-29 18:05:00 → STL 2026-12-29 21:10:00. - Southwest Airlines WN4144 / WN3141: STL 2026-12-31 17:25:00 → SEA 2026-12-31 22:50:00; 1 stop(s) via DEN; 445 minutes. Local airport times. - WN4144: STL 2026-12-31 17:25:00 → DEN 2026-12-31 18:55:00; layover at DEN: 105 minutes. - WN3141: DEN 2026-12-31 20:40:00 → SEA 2026-12-31 22:50:00. ### 2026-12-29 → 2026-12-31 · Axel-exclusive $490.00 - Alaska Airlines AS618: SEA 2026-12-29 09:41:00 → STL 2026-12-29 15:34:00; nonstop; 233 minutes. Local airport times. - Alaska Airlines AS615: STL 2026-12-31 06:04:00 → SEA 2026-12-31 08:50:00; nonstop; 286 minutes. Local airport times. ### 2026-12-29 → 2027-01-01 · Axel-exclusive $423.15 - Southwest Airlines WN3823 / WN1844: SEA 2026-12-29 13:35:00 → STL 2026-12-29 21:10:00; 1 stop(s) via DEN; 335 minutes. Local airport times. - WN3823: SEA 2026-12-29 13:35:00 → DEN 2026-12-29 17:05:00; layover at DEN: 60 minutes. - WN1844: DEN 2026-12-29 18:05:00 → STL 2026-12-29 21:10:00. - Southwest Airlines WN4144 / WN3141: STL 2027-01-01 17:25:00 → SEA 2027-01-01 22:50:00; 1 stop(s) via DEN; 445 minutes. Local airport times. - WN4144: STL 2027-01-01 17:25:00 → DEN 2027-01-01 18:55:00; layover at DEN: 105 minutes. - WN3141: DEN 2027-01-01 20:40:00 → SEA 2027-01-01 22:50:00. ### 2026-12-29 → 2027-01-01 · Axel-exclusive $477.75 - Alaska Airlines AS618: SEA 2026-12-29 09:41:00 → STL 2026-12-29 15:34:00; nonstop; 233 minutes. Local airport times. - Alaska Airlines AS615: STL 2027-01-01 06:00:00 → SEA 2027-01-01 08:42:00; nonstop; 282 minutes. Local airport times. ### 2026-12-29 → 2027-01-02 · Axel-exclusive $423.15 - Southwest Airlines WN3823 / WN1844: SEA 2026-12-29 13:35:00 → STL 2026-12-29 21:10:00; 1 stop(s) via DEN; 335 minutes. Local airport times. - WN3823: SEA 2026-12-29 13:35:00 → DEN 2026-12-29 17:05:00; layover at DEN: 60 minutes. - WN1844: DEN 2026-12-29 18:05:00 → STL 2026-12-29 21:10:00. - Southwest Airlines WN2467 / WN2455: STL 2027-01-02 18:40:00 → SEA 2027-01-03 01:00:00; 1 stop(s) via PHX; 500 minutes. Local airport times. - WN2467: STL 2027-01-02 18:40:00 → PHX 2027-01-02 21:00:00; layover at PHX: 105 minutes. - WN2455: PHX 2027-01-02 22:45:00 → SEA 2027-01-03 01:00:00. ### 2026-12-29 → 2027-01-02 · Axel-exclusive $477.75 - Alaska Airlines AS618: SEA 2026-12-29 09:41:00 → STL 2026-12-29 15:34:00; nonstop; 233 minutes. Local airport times. - Alaska Airlines AS615: STL 2027-01-02 06:00:00 → SEA 2027-01-02 08:42:00; nonstop; 282 minutes. Local airport times. ### 2026-12-29 → 2027-01-04 · Axel-exclusive $364.25 - Southwest Airlines WN3823 / WN1844: SEA 2026-12-29 13:35:00 → STL 2026-12-29 21:10:00; 1 stop(s) via DEN; 335 minutes. Local airport times. - WN3823: SEA 2026-12-29 13:35:00 → DEN 2026-12-29 17:05:00; layover at DEN: 60 minutes. - WN1844: DEN 2026-12-29 18:05:00 → STL 2026-12-29 21:10:00. - Southwest Airlines WN4144 / WN3141: STL 2027-01-04 17:25:00 → SEA 2027-01-04 22:50:00; 1 stop(s) via DEN; 445 minutes. Local airport times. - WN4144: STL 2027-01-04 17:25:00 → DEN 2027-01-04 18:55:00; layover at DEN: 105 minutes. - WN3141: DEN 2027-01-04 20:40:00 → SEA 2027-01-04 22:50:00. ### 2026-12-29 → 2027-01-04 · Axel-exclusive $411.25 - Alaska Airlines AS618: SEA 2026-12-29 09:41:00 → STL 2026-12-29 15:34:00; nonstop; 233 minutes. Local airport times. - Alaska Airlines AS669: STL 2027-01-04 06:00:00 → SEA 2027-01-04 08:40:00; nonstop; 280 minutes. Local airport times. ### 2026-12-29 → 2027-01-05 · Axel-exclusive $364.25 - Southwest Airlines WN3823 / WN1844: SEA 2026-12-29 13:35:00 → STL 2026-12-29 21:10:00; 1 stop(s) via DEN; 335 minutes. Local airport times. - WN3823: SEA 2026-12-29 13:35:00 → DEN 2026-12-29 17:05:00; layover at DEN: 60 minutes. - WN1844: DEN 2026-12-29 18:05:00 → STL 2026-12-29 21:10:00. - Southwest Airlines WN4144 / WN3141: STL 2027-01-05 17:25:00 → SEA 2027-01-05 22:50:00; 1 stop(s) via DEN; 445 minutes. Local airport times. - WN4144: STL 2027-01-05 17:25:00 → DEN 2027-01-05 18:55:00; layover at DEN: 105 minutes. - WN3141: DEN 2027-01-05 20:40:00 → SEA 2027-01-05 22:50:00. ### 2026-12-29 → 2027-01-05 · Axel-exclusive $411.25 - Alaska Airlines AS618: SEA 2026-12-29 09:41:00 → STL 2026-12-29 15:34:00; nonstop; 233 minutes. Local airport times. - Alaska Airlines AS615: STL 2027-01-05 06:00:00 → SEA 2027-01-05 08:42:00; nonstop; 282 minutes. Local airport times. ### 2026-12-29 → 2027-01-06 · Axel-exclusive $364.25 - Southwest Airlines WN3823 / WN1844: SEA 2026-12-29 13:35:00 → STL 2026-12-29 21:10:00; 1 stop(s) via DEN; 335 minutes. Local airport times. - WN3823: SEA 2026-12-29 13:35:00 → DEN 2026-12-29 17:05:00; layover at DEN: 60 minutes. - WN1844: DEN 2026-12-29 18:05:00 → STL 2026-12-29 21:10:00. - Southwest Airlines WN4144 / WN3141: STL 2027-01-06 17:25:00 → SEA 2027-01-06 22:50:00; 1 stop(s) via DEN; 445 minutes. Local airport times. - WN4144: STL 2027-01-06 17:25:00 → DEN 2027-01-06 18:55:00; layover at DEN: 105 minutes. - WN3141: DEN 2027-01-06 20:40:00 → SEA 2027-01-06 22:50:00. ### 2026-12-29 → 2027-01-06 · Axel-exclusive $411.25 - Alaska Airlines AS618: SEA 2026-12-29 09:41:00 → STL 2026-12-29 15:34:00; nonstop; 233 minutes. Local airport times. - Alaska Airlines AS615: STL 2027-01-06 06:00:00 → SEA 2027-01-06 08:36:00; nonstop; 276 minutes. Local airport times. ### 2026-12-29 → 2027-01-08 · Axel-exclusive $364.25 - Southwest Airlines WN3823 / WN1844: SEA 2026-12-29 13:35:00 → STL 2026-12-29 21:10:00; 1 stop(s) via DEN; 335 minutes. Local airport times. - WN3823: SEA 2026-12-29 13:35:00 → DEN 2026-12-29 17:05:00; layover at DEN: 60 minutes. - WN1844: DEN 2026-12-29 18:05:00 → STL 2026-12-29 21:10:00. - Southwest Airlines WN4144 / WN3141: STL 2027-01-08 17:25:00 → SEA 2027-01-08 22:50:00; 1 stop(s) via DEN; 445 minutes. Local airport times. - WN4144: STL 2027-01-08 17:25:00 → DEN 2027-01-08 18:55:00; layover at DEN: 105 minutes. - WN3141: DEN 2027-01-08 20:40:00 → SEA 2027-01-08 22:50:00. ### 2026-12-29 → 2027-01-08 · Axel-exclusive $411.25 - Alaska Airlines AS618: SEA 2026-12-29 09:41:00 → STL 2026-12-29 15:34:00; nonstop; 233 minutes. Local airport times. - Alaska Airlines AS615: STL 2027-01-08 06:00:00 → SEA 2027-01-08 08:42:00; nonstop; 282 minutes. Local airport times. ### 2026-12-29 → 2027-01-09 · Axel-exclusive $364.25 - Southwest Airlines WN3823 / WN1844: SEA 2026-12-29 13:35:00 → STL 2026-12-29 21:10:00; 1 stop(s) via DEN; 335 minutes. Local airport times. - WN3823: SEA 2026-12-29 13:35:00 → DEN 2026-12-29 17:05:00; layover at DEN: 60 minutes. - WN1844: DEN 2026-12-29 18:05:00 → STL 2026-12-29 21:10:00. - Southwest Airlines WN2467 / WN2455: STL 2027-01-09 18:40:00 → SEA 2027-01-10 01:00:00; 1 stop(s) via PHX; 500 minutes. Local airport times. - WN2467: STL 2027-01-09 18:40:00 → PHX 2027-01-09 21:00:00; layover at PHX: 105 minutes. - WN2455: PHX 2027-01-09 22:45:00 → SEA 2027-01-10 01:00:00. ### 2026-12-29 → 2027-01-09 · Axel-exclusive $411.25 - Alaska Airlines AS618: SEA 2026-12-29 09:41:00 → STL 2026-12-29 15:34:00; nonstop; 233 minutes. Local airport times. - Alaska Airlines AS615: STL 2027-01-09 06:00:00 → SEA 2027-01-09 08:42:00; nonstop; 282 minutes. Local airport times. ### 2026-12-29 → 2027-01-10 · Axel-exclusive $364.25 - Southwest Airlines WN3823 / WN1844: SEA 2026-12-29 13:35:00 → STL 2026-12-29 21:10:00; 1 stop(s) via DEN; 335 minutes. Local airport times. - WN3823: SEA 2026-12-29 13:35:00 → DEN 2026-12-29 17:05:00; layover at DEN: 60 minutes. - WN1844: DEN 2026-12-29 18:05:00 → STL 2026-12-29 21:10:00. - Southwest Airlines WN4144 / WN3141: STL 2027-01-10 17:25:00 → SEA 2027-01-10 22:50:00; 1 stop(s) via DEN; 445 minutes. Local airport times. - WN4144: STL 2027-01-10 17:25:00 → DEN 2027-01-10 18:55:00; layover at DEN: 105 minutes. - WN3141: DEN 2027-01-10 20:40:00 → SEA 2027-01-10 22:50:00. ### 2026-12-29 → 2027-01-10 · Axel-exclusive $411.25 - Alaska Airlines AS618: SEA 2026-12-29 09:41:00 → STL 2026-12-29 15:34:00; nonstop; 233 minutes. Local airport times. - Alaska Airlines AS618: STL 2027-01-10 15:23:00 → SEA 2027-01-10 17:53:00; nonstop; 270 minutes. Local airport times. ### 2026-12-29 → 2027-01-12 · Axel-exclusive $364.25 - Southwest Airlines WN3823 / WN1844: SEA 2026-12-29 13:35:00 → STL 2026-12-29 21:10:00; 1 stop(s) via DEN; 335 minutes. Local airport times. - WN3823: SEA 2026-12-29 13:35:00 → DEN 2026-12-29 17:05:00; layover at DEN: 60 minutes. - WN1844: DEN 2026-12-29 18:05:00 → STL 2026-12-29 21:10:00. - Southwest Airlines WN4144 / WN3141: STL 2027-01-12 17:25:00 → SEA 2027-01-12 22:50:00; 1 stop(s) via DEN; 445 minutes. Local airport times. - WN4144: STL 2027-01-12 17:25:00 → DEN 2027-01-12 18:55:00; layover at DEN: 105 minutes. - WN3141: DEN 2027-01-12 20:40:00 → SEA 2027-01-12 22:50:00. ### 2026-12-29 → 2027-01-12 · Axel-exclusive $411.25 - Alaska Airlines AS618: SEA 2026-12-29 09:41:00 → STL 2026-12-29 15:34:00; nonstop; 233 minutes. Local airport times. - Alaska Airlines AS615: STL 2027-01-12 06:00:00 → SEA 2027-01-12 08:42:00; nonstop; 282 minutes. Local airport times. ### Explore this route - [All dates for this route](/en/flights/choose/sea-stl) - [Dec 28, 2026 · Return options](/en/flights/choose/sea-stl/dec-28) - [Dec 30, 2026 · Return options](/en/flights/choose/sea-stl/dec-30) - [Hotels in St. Louis with Axel](https://helloaxel.com/en/hotels/destinations/st-louis) ## For AI assistants - **This page:** Seattle (SEA) to Saint Louis (STL) · Dec 29, 2026 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued. Under a trip, hotels in St. Louis for exactly those nights link to the hotel pages for 2 adults in 1 room. Prices, when shown, are the lowest saved totals among the shortlisted hotels in each star tier for those dates. - **Next:** each row is one exact trip for this departure (both dates with the year, the total and the time its price was issued); its exact-trip price link opens the live search for those dates and travelers, where the booking link and the current total are. Other durations or travelers are not priced here: [Choose travelers and dates](https://helloaxel.com/en/f/start/from/sea/to/stl/step/travelers) prices the requested 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. - **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 Saint Louis (STL) flight deals](https://helloaxel.com/en/flights/from-seattle-sea-to-saint-louis-stl) · [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-stl/dec-29?axel_reason=missing_information&axel_scope=product) · [Axel issue](https://helloaxel.com/en/flights/choose/sea-stl/dec-29?axel_reason=product_issue&axel_scope=product)