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Saint Louis → Seattle

Nov 20, 2026 · return Nov 23, 2026

STL → SEA1 adulteconomyRound trip

8 flight options · 4 airlines

Nonstop flights

Fri, Nov 20 – Mon, Nov 23

Alaska Airlines
6:00 amSTL
4h 42m
Nonstop
8:42 amSEA
Alaska Airlines
9:16 amSEA
3h 50m
Nonstop
3:06 pmSTL

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

Alaska Airlines
4:04 pmSTL
4h 40m
Nonstop
6:44 pmSEA
Alaska Airlines
9:16 amSEA
3h 50m
Nonstop
3:06 pmSTL

Round-trip total · 1 adult · Taxes included

One-stop flights

Fri, Nov 20 – Mon, Nov 23

Southwest Airlines
5:25 pmSTL
7h 25m
DEN · 1h 45m
10:50 pmSEA
Southwest Airlines
1:35 pmSEA
5h 35m
DEN · 1h
9:10 pmSTL

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

American Airlines
11:37 amSTL
8h 34m
ORD · 2h 20m
6:11 pmSEA
American Airlines
12:47 amSEA
6h 44m
DFW · 1h 4m
9:31 amSTL

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

Delta Air Lines
6:03 amSTL
6h 42m
MSP · 1h 2m
10:45 amSEA
Delta Air Lines
8:30 amSEA
6h
MSP · 1h 7m
4:30 pmSTL

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

Southwest Airlines
6:40 pmSTL
8h 20m
PHX · 1h 45m
1:00 am+1SEA
Southwest Airlines
1:35 pmSEA
5h 35m
DEN · 1h
9:10 pmSTL

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

Delta Air Lines
7:08 amSTL
7h 28m
SLC · 1h 39m
12:36 pmSEA
Delta Air Lines
8:30 amSEA
6h
MSP · 1h 7m
4:30 pmSTL

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

Delta Air Lines
2:31 pmSTL
8h 19m
ATL · 1h 8m
8:50 pmSEA
Delta Air Lines
8:30 amSEA
6h
MSP · 1h 7m
4:30 pmSTL

Round-trip total · 1 adult · Taxes included

Make this trip yours

STL ⇄ SEA

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

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More dates

All dates for this routeNov 27, 2026 → Dec 4, 2026Nov 20, 2026 · One way
For AI assistants: every fare, every link, instructions

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-11-20 → 2026-11-23Alaska AirlinesAS615 / AS314$412.502026-10-29T01:29:02Z
2026-11-20 → 2026-11-23Southwest AirlinesWN4144 + WN3141 / WN3823 + WN1844$368.762026-10-29T01:29:02Z
2026-11-20 → 2026-11-23American AirlinesAA3198 + AS407 / AA630 + AA2897$387.502026-10-29T01:29:02Z
2026-11-20 → 2026-11-23Delta Air LinesDL1597 + DL868 / DL536 + DL1839$400.002026-10-29T01:29:02Z
2026-11-20 → 2026-11-23Alaska AirlinesAS618 / AS314$412.502026-10-29T01:29:02Z
2026-11-20 → 2026-11-23Southwest AirlinesWN2467 + WN2455 / WN3823 + WN1844$368.762026-10-29T01:29:02Z
2026-11-20 → 2026-11-23Delta Air LinesDL2363 + DL2995 / DL536 + DL1839$400.002026-10-29T01:29:02Z
2026-11-20 → 2026-11-23Delta Air LinesDL1102 + DL714 / DL536 + DL1839$400.002026-10-29T01:29:02Z

2026-11-20 → 2026-11-23 · $412.50

  • Alaska Airlines AS615: STL 2026-11-20 06:00:00 → SEA 2026-11-20 08:42:00; nonstop; 282 minutes. Local airport times.
  • Alaska Airlines AS314: SEA 2026-11-23 09:16:00 → STL 2026-11-23 15:06:00; nonstop; 230 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $368.76

  • Southwest Airlines WN4144 / WN3141: STL 2026-11-20 17:25:00 → SEA 2026-11-20 22:50:00; 1 stop(s) via DEN; 445 minutes. Local airport times.
    • WN4144: STL 2026-11-20 17:25:00 → DEN 2026-11-20 18:55:00; layover at DEN: 105 minutes.
    • WN3141: DEN 2026-11-20 20:40:00 → SEA 2026-11-20 22:50:00.
  • Southwest Airlines WN3823 / WN1844: SEA 2026-11-23 13:35:00 → STL 2026-11-23 21:10:00; 1 stop(s) via DEN; 335 minutes. Local airport times.
    • WN3823: SEA 2026-11-23 13:35:00 → DEN 2026-11-23 17:05:00; layover at DEN: 60 minutes.
    • WN1844: DEN 2026-11-23 18:05:00 → STL 2026-11-23 21:10:00.

2026-11-20 → 2026-11-23 · $387.50

  • American Airlines AA3198 / AS407: STL 2026-11-20 11:37:00 → SEA 2026-11-20 18:11:00; 1 stop(s) via ORD; 514 minutes. Local airport times.
    • AA3198: STL 2026-11-20 11:37:00 → ORD 2026-11-20 12:59:00; layover at ORD: 140 minutes.
    • AS407: ORD 2026-11-20 15:19:00 → SEA 2026-11-20 18:11:00.
  • American Airlines AA630 / AA2897: SEA 2026-11-23 00:47:00 → STL 2026-11-23 09:31:00; 1 stop(s) via DFW; 404 minutes. Local airport times.
    • AA630: SEA 2026-11-23 00:47:00 → DFW 2026-11-23 06:39:00; layover at DFW: 64 minutes.
    • AA2897: DFW 2026-11-23 07:43:00 → STL 2026-11-23 09:31:00.

2026-11-20 → 2026-11-23 · $400.00

  • Delta Air Lines DL1597 / DL868: STL 2026-11-20 06:03:00 → SEA 2026-11-20 10:45:00; 1 stop(s) via MSP; 402 minutes. Local airport times.
    • DL1597: STL 2026-11-20 06:03:00 → MSP 2026-11-20 07:43:00; layover at MSP: 62 minutes.
    • DL868: MSP 2026-11-20 08:45:00 → SEA 2026-11-20 10:45:00.
  • Delta Air Lines DL536 / DL1839: SEA 2026-11-23 08:30:00 → STL 2026-11-23 16:30:00; 1 stop(s) via MSP; 360 minutes. Local airport times.
    • DL536: SEA 2026-11-23 08:30:00 → MSP 2026-11-23 13:48:00; layover at MSP: 67 minutes.
    • DL1839: MSP 2026-11-23 14:55:00 → STL 2026-11-23 16:30:00.

2026-11-20 → 2026-11-23 · $412.50

  • Alaska Airlines AS618: STL 2026-11-20 16:04:00 → SEA 2026-11-20 18:44:00; nonstop; 280 minutes. Local airport times.
  • Alaska Airlines AS314: SEA 2026-11-23 09:16:00 → STL 2026-11-23 15:06:00; nonstop; 230 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $368.76

  • Southwest Airlines WN2467 / WN2455: STL 2026-11-20 18:40:00 → SEA 2026-11-21 01:00:00; 1 stop(s) via PHX; 500 minutes. Local airport times.
    • WN2467: STL 2026-11-20 18:40:00 → PHX 2026-11-20 21:00:00; layover at PHX: 105 minutes.
    • WN2455: PHX 2026-11-20 22:45:00 → SEA 2026-11-21 01:00:00.
  • Southwest Airlines WN3823 / WN1844: SEA 2026-11-23 13:35:00 → STL 2026-11-23 21:10:00; 1 stop(s) via DEN; 335 minutes. Local airport times.
    • WN3823: SEA 2026-11-23 13:35:00 → DEN 2026-11-23 17:05:00; layover at DEN: 60 minutes.
    • WN1844: DEN 2026-11-23 18:05:00 → STL 2026-11-23 21:10:00.

2026-11-20 → 2026-11-23 · $400.00

  • Delta Air Lines DL2363 / DL2995: STL 2026-11-20 07:08:00 → SEA 2026-11-20 12:36:00; 1 stop(s) via SLC; 448 minutes. Local airport times.
    • DL2363: STL 2026-11-20 07:08:00 → SLC 2026-11-20 09:36:00; layover at SLC: 99 minutes.
    • DL2995: SLC 2026-11-20 11:15:00 → SEA 2026-11-20 12:36:00.
  • Delta Air Lines DL536 / DL1839: SEA 2026-11-23 08:30:00 → STL 2026-11-23 16:30:00; 1 stop(s) via MSP; 360 minutes. Local airport times.
    • DL536: SEA 2026-11-23 08:30:00 → MSP 2026-11-23 13:48:00; layover at MSP: 67 minutes.
    • DL1839: MSP 2026-11-23 14:55:00 → STL 2026-11-23 16:30:00.

2026-11-20 → 2026-11-23 · $400.00

  • Delta Air Lines DL1102 / DL714: STL 2026-11-20 14:31:00 → SEA 2026-11-20 20:50:00; 1 stop(s) via ATL; 499 minutes. Local airport times.
    • DL1102: STL 2026-11-20 14:31:00 → ATL 2026-11-20 17:05:00; layover at ATL: 68 minutes.
    • DL714: ATL 2026-11-20 18:13:00 → SEA 2026-11-20 20:50:00.
  • Delta Air Lines DL536 / DL1839: SEA 2026-11-23 08:30:00 → STL 2026-11-23 16:30:00; 1 stop(s) via MSP; 360 minutes. Local airport times.
    • DL536: SEA 2026-11-23 08:30:00 → MSP 2026-11-23 13:48:00; layover at MSP: 67 minutes.
    • DL1839: MSP 2026-11-23 14:55:00 → STL 2026-11-23 16:30:00.

More dates for this route