All airlines flying from Saint Louis (STL) to Seattle-Tacoma (SEA).

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FLIGHT SCHEDULE
Direct Codeshare Flights:
Mon-Fri,Sun 07:00 Saint Louis (STL) 1 09:17 Seattle-Tacoma (SEA) Air Tahiti Nui TN 2731 Non-stop Boeing 737 MAX 9 (7M9) 4:17 Effective 2025-06-05 through 2025-06-11 Codeshare flight, operated by Alaska Airlines.(AS 504)
Daily 07:00 Saint Louis (STL) 1 09:26 Seattle-Tacoma (SEA) Air Tahiti Nui TN 2731 Non-stop Boeing 737 (73J) 4:26 Effective 2025-10-04 through 2026-01-06 Codeshare flight, operated by Alaska Airlines.(AS 473)
Daily 07:00 Saint Louis (STL) 1 09:26 Seattle-Tacoma (SEA) Air Tahiti Nui TN 2731 Non-stop Boeing 737 (73J) 4:26 Effective from 2026-02-12 Codeshare flight, operated by Alaska Airlines.(AS 473)
Wed 18:18 Saint Louis (STL) 1 20:45 Seattle-Tacoma (SEA) Air Tahiti Nui TN 2745 Non-stop Boeing 737 (73J) 4:27 Operates only on 2025-06-11 Codeshare flight, operated by Alaska Airlines.(AS 575)
Mon-Thu,Sat,Sun 06:30 Saint Louis (STL) 1 08:54 Seattle-Tacoma (SEA) Qatar Airways QR 4297 Non-stop Boeing 737 MAX 9 (7M9) 4:24 Valid until 2025-05-01 Codeshare flight, operated by Alaska Airlines.(AS 473)
Daily 06:30 Saint Louis (STL) 1 08:54 Seattle-Tacoma (SEA) Qatar Airways QR 4297 Non-stop Boeing 737 MAX 9 (7M9) 4:24 Effective 2025-05-02 through 2025-05-14 Codeshare flight, operated by Alaska Airlines.(AS 473)
Mon-Thu,Sat,Sun 06:30 Saint Louis (STL) 1 08:54 Seattle-Tacoma (SEA) JAL JL 5439 Non-stop Boeing 737 MAX 9 (7M9) 4:24 Valid until 2025-05-01 Codeshare flight, operated by Alaska Airlines.(AS 473)
Daily 06:30 Saint Louis (STL) 1 08:54 Seattle-Tacoma (SEA) JAL JL 5439 Non-stop Boeing 737 MAX 9 (7M9) 4:24 Effective 2025-05-02 through 2025-05-14 Codeshare flight, operated by Alaska Airlines.(AS 473)
Sat 06:30 Saint Louis (STL) 1 08:47 Seattle-Tacoma (SEA) JAL JL 5439 Non-stop Boeing 737 MAX 9 (7M9) 4:17 Effective 2025-05-17 through 2025-05-24 Codeshare flight, operated by Alaska Airlines.(AS 504)
Sat 06:30 Saint Louis (STL) 1 08:47 Seattle-Tacoma (SEA) JAL JL 5439 Non-stop Boeing 737-800 (73H) 4:17 Operates only on 2025-05-31 Codeshare flight, operated by Alaska Airlines.(AS 504)
Sat 06:30 Saint Louis (STL) 1 08:47 Seattle-Tacoma (SEA) JAL JL 5439 Non-stop Boeing 737 (73J) 4:17 Operates only on 2025-06-07 Codeshare flight, operated by Alaska Airlines.(AS 504)
Daily 06:30 Saint Louis (STL) 1 09:00 Seattle-Tacoma (SEA) JAL JL 5439 Non-stop Boeing 737 (73J) 4:30 Effective 2025-08-20 through 2025-10-03 Codeshare flight, operated by Alaska Airlines.(AS 473)
Daily 06:41 Saint Louis (STL) 1 09:10 Seattle-Tacoma (SEA) JAL JL 5439 Non-stop Boeing 737 (73J) 4:29 Effective 2025-06-12 through 2025-07-21 Codeshare flight, operated by Alaska Airlines.(AS 473)
Tue,Fri 06:41 Saint Louis (STL) 1 09:10 Seattle-Tacoma (SEA) JAL JL 5439 Non-stop Boeing 737 MAX 9 (7M9) 4:29 Effective 2025-07-22 through 2025-07-25 Codeshare flight, operated by Alaska Airlines.(AS 473)
Mon-Thu,Sat,Sun 06:41 Saint Louis (STL) 1 09:10 Seattle-Tacoma (SEA) JAL JL 5439 Non-stop Boeing 737 (73J) 4:29 Effective 2025-07-23 through 2025-08-07 Codeshare flight, operated by Alaska Airlines.(AS 473)
Fri 06:41 Saint Louis (STL) 1 09:10 Seattle-Tacoma (SEA) JAL JL 5439 Non-stop Boeing 737 MAX 9 (7M9) 4:29 Operates only on 2025-08-01 Codeshare flight, operated by Alaska Airlines.(AS 473)
Daily 06:41 Saint Louis (STL) 1 09:10 Seattle-Tacoma (SEA) JAL JL 5439 Non-stop Boeing 737 (73J) 4:29 Effective 2025-08-08 through 2025-08-19 Codeshare flight, operated by Alaska Airlines.(AS 473)
Thu,Fri 07:00 Saint Louis (STL) 1 09:17 Seattle-Tacoma (SEA) JAL JL 5439 Non-stop Boeing 737 (73J) 4:17 Effective 2025-05-15 through 2025-05-16 Codeshare flight, operated by Alaska Airlines.(AS 504)
Mon-Fri,Sun 07:00 Saint Louis (STL) 1 09:17 Seattle-Tacoma (SEA) JAL JL 5439 Non-stop Boeing 737 MAX 9 (7M9) 4:17 Effective 2025-05-18 through 2025-05-23 Codeshare flight, operated by Alaska Airlines.(AS 504)
Thu,Sun 07:00 Saint Louis (STL) 1 09:17 Seattle-Tacoma (SEA) JAL JL 5439 Non-stop Boeing 737 (73J) 4:17 Effective 2025-05-25 through 2025-05-29 Codeshare flight, operated by Alaska Airlines.(AS 504)
Mon-Wed,Fri 07:00 Saint Louis (STL) 1 09:17 Seattle-Tacoma (SEA) JAL JL 5439 Non-stop Boeing 737 MAX 9 (7M9) 4:17 Effective 2025-05-26 through 2025-06-04 Codeshare flight, operated by Alaska Airlines.(AS 504)
Sun 07:00 Saint Louis (STL) 1 09:17 Seattle-Tacoma (SEA) JAL JL 5439 Non-stop Boeing 737-800 (73H) 4:17 Operates only on 2025-06-01 Codeshare flight, operated by Alaska Airlines.(AS 504)
Mon-Fri,Sun 07:00 Saint Louis (STL) 1 09:17 Seattle-Tacoma (SEA) JAL JL 5439 Non-stop Boeing 737 MAX 9 (7M9) 4:17 Effective 2025-06-05 through 2025-06-11 Codeshare flight, operated by Alaska Airlines.(AS 504)
Daily 07:00 Saint Louis (STL) 1 09:26 Seattle-Tacoma (SEA) JAL JL 5439 Non-stop Boeing 737 (73J) 4:26 Effective 2025-10-04 through 2026-01-06 Codeshare flight, operated by Alaska Airlines.(AS 473)
Daily 07:00 Saint Louis (STL) 1 09:26 Seattle-Tacoma (SEA) JAL JL 5439 Non-stop Boeing 737 (73J) 4:26 Effective from 2026-02-12 Codeshare flight, operated by Alaska Airlines.(AS 473)
Wed 18:18 Saint Louis (STL) 1 20:45 Seattle-Tacoma (SEA) Hawaiian Airlines HA 6418 Non-stop Boeing 737 (737) 4:27 Operates only on 2025-06-11 Codeshare flight, operated by Alaska Airlines.(AS 575)
Daily 06:30 Saint Louis (STL) 1 09:00 Seattle-Tacoma (SEA) Hawaiian Airlines HA 7001 Non-stop Boeing 737 (737) 4:30 Effective 2025-08-20 through 2025-10-03 Codeshare flight, operated by Alaska Airlines.(AS 473)
Daily 07:00 Saint Louis (STL) 1 09:26 Seattle-Tacoma (SEA) Hawaiian Airlines HA 7001 Non-stop Boeing 737 (737) 4:26 Effective 2025-10-04 through 2026-01-06 Codeshare flight, operated by Alaska Airlines.(AS 473)
Daily 07:00 Saint Louis (STL) 1 09:26 Seattle-Tacoma (SEA) Hawaiian Airlines HA 7001 Non-stop Boeing 737 (737) 4:26 Effective from 2026-02-12 Codeshare flight, operated by Alaska Airlines.(AS 473)
Daily 18:18 Saint Louis (STL) 1 20:45 Seattle-Tacoma (SEA) Hawaiian Airlines HA 7125 Non-stop Boeing 737 MAX 9 (7M9) 4:27 Effective 2025-06-01 through 2025-06-10 Codeshare flight, operated by Alaska Airlines.(AS 503)
Thu,Fri 18:22 Saint Louis (STL) 1 20:50 Seattle-Tacoma (SEA) Hawaiian Airlines HA 7125 Non-stop Boeing 737 (737) 4:28 Effective 2025-05-15 through 2025-05-16 Codeshare flight, operated by Alaska Airlines.(AS 503)
Daily 18:22 Saint Louis (STL) 1 20:50 Seattle-Tacoma (SEA) Hawaiian Airlines HA 7125 Non-stop Boeing 737 MAX 9 (7M9) 4:28 Effective 2025-05-17 through 2025-05-25 Codeshare flight, operated by Alaska Airlines.(AS 503)
Mon 18:22 Saint Louis (STL) 1 20:50 Seattle-Tacoma (SEA) Hawaiian Airlines HA 7125 Non-stop Boeing 737 (737) 4:28 Operates only on 2025-05-26 Codeshare flight, operated by Alaska Airlines.(AS 503)
Tue-Sat 18:22 Saint Louis (STL) 1 20:50 Seattle-Tacoma (SEA) Hawaiian Airlines HA 7125 Non-stop Boeing 737 MAX 9 (7M9) 4:28 Effective 2025-05-27 through 2025-05-31 Codeshare flight, operated by Alaska Airlines.(AS 503)
Mon-Sat 19:32 Saint Louis (STL) 1 22:00 Seattle-Tacoma (SEA) Hawaiian Airlines HA 7125 Non-stop Boeing 737 MAX 9 (7M9) 4:28 Effective 2025-06-12 through 2025-06-21 Codeshare flight, operated by Alaska Airlines.(AS 291)
Sun 19:32 Saint Louis (STL) 1 22:00 Seattle-Tacoma (SEA) Hawaiian Airlines HA 7125 Non-stop Boeing 737 (737) 4:28 Operates only on 2025-06-15 Codeshare flight, operated by Alaska Airlines.(AS 291)
Daily 19:32 Saint Louis (STL) 1 22:00 Seattle-Tacoma (SEA) Hawaiian Airlines HA 7125 Non-stop Boeing 737 MAX 9 (7M9) 4:28 Effective 2025-06-22 through 2025-06-29 Codeshare flight, operated by Alaska Airlines.(AS 291)
Mon,Tue 19:32 Saint Louis (STL) 1 22:00 Seattle-Tacoma (SEA) Hawaiian Airlines HA 7125 Non-stop Boeing 737 (737) 4:28 Effective 2025-06-30 through 2025-07-01 Codeshare flight, operated by Alaska Airlines.(AS 291)
Mon,Wed,Thu,Sat,Sun 19:32 Saint Louis (STL) 1 22:00 Seattle-Tacoma (SEA) Hawaiian Airlines HA 7125 Non-stop Boeing 737 MAX 9 (7M9) 4:28 Effective 2025-07-02 through 2025-07-10 Codeshare flight, operated by Alaska Airlines.(AS 291)
Mon,Tue 19:32 Saint Louis (STL) 1 22:00 Seattle-Tacoma (SEA) Hawaiian Airlines HA 7125 Non-stop Boeing 737 (737) 4:28 Effective 2025-07-08 through 2025-07-14 Codeshare flight, operated by Alaska Airlines.(AS 291)
Tue-Sun 19:32 Saint Louis (STL) 1 22:00 Seattle-Tacoma (SEA) Hawaiian Airlines HA 7125 Non-stop Boeing 737 MAX 9 (7M9) 4:28 Effective 2025-07-11 through 2025-07-20 Codeshare flight, operated by Alaska Airlines.(AS 291)
Mon,Tue 19:32 Saint Louis (STL) 1 22:00 Seattle-Tacoma (SEA) Hawaiian Airlines HA 7125 Non-stop Boeing 737 (737) 4:28 Effective 2025-07-21 through 2025-07-29 Codeshare flight, operated by Alaska Airlines.(AS 291)
Wed-Sun 19:32 Saint Louis (STL) 1 22:00 Seattle-Tacoma (SEA) Hawaiian Airlines HA 7125 Non-stop Boeing 737 MAX 9 (7M9) 4:28 Effective 2025-07-23 through 2025-08-03 Codeshare flight, operated by Alaska Airlines.(AS 291)
Mon,Wed-Sun 19:32 Saint Louis (STL) 1 22:00 Seattle-Tacoma (SEA) Hawaiian Airlines HA 7125 Non-stop Boeing 737 MAX 9 (7M9) 4:28 Effective 2025-08-04 through 2025-08-18 Codeshare flight, operated by Alaska Airlines.(AS 291)
Tue 19:32 Saint Louis (STL) 1 22:00 Seattle-Tacoma (SEA) Hawaiian Airlines HA 7125 Non-stop Boeing 737 (737) 4:28 Effective 2025-08-05 through 2025-08-12 Codeshare flight, operated by Alaska Airlines.(AS 291)
Tue 19:32 Saint Louis (STL) 1 22:00 Seattle-Tacoma (SEA) Hawaiian Airlines HA 7125 Non-stop Boeing 737 MAX 9 (7M9) 4:28 Operates only on 2025-08-19 Codeshare flight, operated by Alaska Airlines.(AS 291)
Daily 19:36 Saint Louis (STL) 1 22:00 Seattle-Tacoma (SEA) Hawaiian Airlines HA 7125 Non-stop Boeing 737 (737) 4:24 Effective 2025-08-20 through 2025-10-03 Codeshare flight, operated by Alaska Airlines.(AS 291)
Daily 14:55 Saint Louis (STL) 1 17:21 Seattle-Tacoma (SEA) Hawaiian Airlines HA 7126 Non-stop Boeing 737 (737) 4:26 Effective from 2025-10-04 Codeshare flight, operated by Alaska Airlines.(AS 388)
Daily 15:03 Saint Louis (STL) 1 17:32 Seattle-Tacoma (SEA) Hawaiian Airlines HA 7126 Non-stop Boeing 737 MAX 9 (7M9) 4:29 Effective 2025-05-15 through 2025-06-11 Codeshare flight, operated by Alaska Airlines.(AS 315)
Mon,Tue,Fri 15:08 Saint Louis (STL) 1 17:39 Seattle-Tacoma (SEA) Hawaiian Airlines HA 7126 Non-stop Boeing 737 MAX 9 (7M9) 4:31 Valid until 2025-05-06 Codeshare flight, operated by Alaska Airlines.(AS 388)

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Parallax here STL-SEA

1 2 3 4 5 6

A domestic route departing from the Saint Louis airport (STL) and arriving at Seattle-Tacoma airport (SEA).
The flight distance is 1704 miles, or 2743 km.
The timezone of the departure airport is UTC-6 , and the timezone of the arrival airport is UTC-8 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
For direct flights, the flight time varies between 4:17 and 4:31.

Return (SEA-STL) flights

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All airlines flying from Saint Louis (STL) to Seattle-Tacoma (SEA).

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FLIGHT SCHEDULE

Direct Codeshare Flights:

Air Tahiti Nui TN2731

07:00

Saint Louis (STL) 1

09:17

Seattle-Tacoma (SEA)

Effective 2025-06-05 through 2025-06-11

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by Alaska Airlines. (AS 504)

Duration: 4:17, non-stop
Boeing 737 MAX 9 (7M9)

Air Tahiti Nui TN2731

07:00

Saint Louis (STL) 1

09:26

Seattle-Tacoma (SEA)

Effective 2025-10-04 through 2026-01-06

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 473)

Duration: 4:26, non-stop
Boeing 737 (73J)

Air Tahiti Nui TN2731

07:00

Saint Louis (STL) 1

09:26

Seattle-Tacoma (SEA)

Effective from 2026-02-12

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 473)

Duration: 4:26, non-stop
Boeing 737 (73J)

Air Tahiti Nui TN2745

18:18

Saint Louis (STL) 1

20:45

Seattle-Tacoma (SEA)

Operates only on 2025-06-11

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 575)

Duration: 4:27, non-stop
Boeing 737 (73J)

Qatar Airways QR4297

06:30

Saint Louis (STL) 1

08:54

Seattle-Tacoma (SEA)

Valid until 2025-05-01

Mon

Tue

Wed

Thu

Fri
-

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 473)

Duration: 4:24, non-stop
Boeing 737 MAX 9 (7M9)

Qatar Airways QR4297

06:30

Saint Louis (STL) 1

08:54

Seattle-Tacoma (SEA)

Effective 2025-05-02 through 2025-05-14

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 473)

Duration: 4:24, non-stop
Boeing 737 MAX 9 (7M9)

JAL JL5439

06:30

Saint Louis (STL) 1

08:54

Seattle-Tacoma (SEA)

Valid until 2025-05-01

Mon

Tue

Wed

Thu

Fri
-

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 473)

Duration: 4:24, non-stop
Boeing 737 MAX 9 (7M9)

JAL JL5439

06:30

Saint Louis (STL) 1

08:54

Seattle-Tacoma (SEA)

Effective 2025-05-02 through 2025-05-14

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 473)

Duration: 4:24, non-stop
Boeing 737 MAX 9 (7M9)

JAL JL5439

06:30

Saint Louis (STL) 1

08:47

Seattle-Tacoma (SEA)

Effective 2025-05-17 through 2025-05-24

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 504)

Duration: 4:17, non-stop
Boeing 737 MAX 9 (7M9)

JAL JL5439

06:30

Saint Louis (STL) 1

08:47

Seattle-Tacoma (SEA)

Operates only on 2025-05-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 504)

Duration: 4:17, non-stop
Boeing 737-800 (73H)

JAL JL5439

06:30

Saint Louis (STL) 1

08:47

Seattle-Tacoma (SEA)

Operates only on 2025-06-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 504)

Duration: 4:17, non-stop
Boeing 737 (73J)

JAL JL5439

06:30

Saint Louis (STL) 1

09:00

Seattle-Tacoma (SEA)

Effective 2025-08-20 through 2025-10-03

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 473)

Duration: 4:30, non-stop
Boeing 737 (73J)

JAL JL5439

06:41

Saint Louis (STL) 1

09:10

Seattle-Tacoma (SEA)

Effective 2025-06-12 through 2025-07-21

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 473)

Duration: 4:29, non-stop
Boeing 737 (73J)

JAL JL5439

06:41

Saint Louis (STL) 1

09:10

Seattle-Tacoma (SEA)

Effective 2025-07-22 through 2025-07-25

Mon
-

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 473)

Duration: 4:29, non-stop
Boeing 737 MAX 9 (7M9)

JAL JL5439

06:41

Saint Louis (STL) 1

09:10

Seattle-Tacoma (SEA)

Effective 2025-07-23 through 2025-08-07

Mon

Tue

Wed

Thu

Fri
-

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 473)

Duration: 4:29, non-stop
Boeing 737 (73J)

JAL JL5439

06:41

Saint Louis (STL) 1

09:10

Seattle-Tacoma (SEA)

Operates only on 2025-08-01

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 473)

Duration: 4:29, non-stop
Boeing 737 MAX 9 (7M9)

JAL JL5439

06:41

Saint Louis (STL) 1

09:10

Seattle-Tacoma (SEA)

Effective 2025-08-08 through 2025-08-19

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 473)

Duration: 4:29, non-stop
Boeing 737 (73J)

JAL JL5439

07:00

Saint Louis (STL) 1

09:17

Seattle-Tacoma (SEA)

Effective 2025-05-15 through 2025-05-16

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 504)

Duration: 4:17, non-stop
Boeing 737 (73J)

JAL JL5439

07:00

Saint Louis (STL) 1

09:17

Seattle-Tacoma (SEA)

Effective 2025-05-18 through 2025-05-23

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by Alaska Airlines. (AS 504)

Duration: 4:17, non-stop
Boeing 737 MAX 9 (7M9)

JAL JL5439

07:00

Saint Louis (STL) 1

09:17

Seattle-Tacoma (SEA)

Effective 2025-05-25 through 2025-05-29

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun

Codeshare flight, operated by Alaska Airlines. (AS 504)

Duration: 4:17, non-stop
Boeing 737 (73J)

JAL JL5439

07:00

Saint Louis (STL) 1

09:17

Seattle-Tacoma (SEA)

Effective 2025-05-26 through 2025-06-04

Mon

Tue

Wed

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 504)

Duration: 4:17, non-stop
Boeing 737 MAX 9 (7M9)

JAL JL5439

07:00

Saint Louis (STL) 1

09:17

Seattle-Tacoma (SEA)

Operates only on 2025-06-01

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Codeshare flight, operated by Alaska Airlines. (AS 504)

Duration: 4:17, non-stop
Boeing 737-800 (73H)

JAL JL5439

07:00

Saint Louis (STL) 1

09:17

Seattle-Tacoma (SEA)

Effective 2025-06-05 through 2025-06-11

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by Alaska Airlines. (AS 504)

Duration: 4:17, non-stop
Boeing 737 MAX 9 (7M9)

JAL JL5439

07:00

Saint Louis (STL) 1

09:26

Seattle-Tacoma (SEA)

Effective 2025-10-04 through 2026-01-06

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 473)

Duration: 4:26, non-stop
Boeing 737 (73J)

JAL JL5439

07:00

Saint Louis (STL) 1

09:26

Seattle-Tacoma (SEA)

Effective from 2026-02-12

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 473)

Duration: 4:26, non-stop
Boeing 737 (73J)

Hawaiian Airlines HA6418

18:18

Saint Louis (STL) 1

20:45

Seattle-Tacoma (SEA)

Operates only on 2025-06-11

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 575)

Duration: 4:27, non-stop
Boeing 737 (737)

Hawaiian Airlines HA7001

06:30

Saint Louis (STL) 1

09:00

Seattle-Tacoma (SEA)

Effective 2025-08-20 through 2025-10-03

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 473)

Duration: 4:30, non-stop
Boeing 737 (737)

Hawaiian Airlines HA7001

07:00

Saint Louis (STL) 1

09:26

Seattle-Tacoma (SEA)

Effective 2025-10-04 through 2026-01-06

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 473)

Duration: 4:26, non-stop
Boeing 737 (737)

Hawaiian Airlines HA7001

07:00

Saint Louis (STL) 1

09:26

Seattle-Tacoma (SEA)

Effective from 2026-02-12

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 473)

Duration: 4:26, non-stop
Boeing 737 (737)

Hawaiian Airlines HA7125

18:18

Saint Louis (STL) 1

20:45

Seattle-Tacoma (SEA)

Effective 2025-06-01 through 2025-06-10

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 503)

Duration: 4:27, non-stop
Boeing 737 MAX 9 (7M9)

Hawaiian Airlines HA7125

18:22

Saint Louis (STL) 1

20:50

Seattle-Tacoma (SEA)

Effective 2025-05-15 through 2025-05-16

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 503)

Duration: 4:28, non-stop
Boeing 737 (737)

Hawaiian Airlines HA7125

18:22

Saint Louis (STL) 1

20:50

Seattle-Tacoma (SEA)

Effective 2025-05-17 through 2025-05-25

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 503)

Duration: 4:28, non-stop
Boeing 737 MAX 9 (7M9)

Hawaiian Airlines HA7125

18:22

Saint Louis (STL) 1

20:50

Seattle-Tacoma (SEA)

Operates only on 2025-05-26

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 503)

Duration: 4:28, non-stop
Boeing 737 (737)

Hawaiian Airlines HA7125

18:22

Saint Louis (STL) 1

20:50

Seattle-Tacoma (SEA)

Effective 2025-05-27 through 2025-05-31

Mon
-

Tue

Wed

Thu

Fri

Sat

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 503)

Duration: 4:28, non-stop
Boeing 737 MAX 9 (7M9)

Hawaiian Airlines HA7125

19:32

Saint Louis (STL) 1

22:00

Seattle-Tacoma (SEA)

Effective 2025-06-12 through 2025-06-21

Mon

Tue

Wed

Thu

Fri

Sat

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 291)

Duration: 4:28, non-stop
Boeing 737 MAX 9 (7M9)

Hawaiian Airlines HA7125

19:32

Saint Louis (STL) 1

22:00

Seattle-Tacoma (SEA)

Operates only on 2025-06-15

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Codeshare flight, operated by Alaska Airlines. (AS 291)

Duration: 4:28, non-stop
Boeing 737 (737)

Hawaiian Airlines HA7125

19:32

Saint Louis (STL) 1

22:00

Seattle-Tacoma (SEA)

Effective 2025-06-22 through 2025-06-29

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 291)

Duration: 4:28, non-stop
Boeing 737 MAX 9 (7M9)

Hawaiian Airlines HA7125

19:32

Saint Louis (STL) 1

22:00

Seattle-Tacoma (SEA)

Effective 2025-06-30 through 2025-07-01

Mon

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 291)

Duration: 4:28, non-stop
Boeing 737 (737)

Hawaiian Airlines HA7125

19:32

Saint Louis (STL) 1

22:00

Seattle-Tacoma (SEA)

Effective 2025-07-02 through 2025-07-10

Mon

Tue
-

Wed

Thu

Fri
-

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 291)

Duration: 4:28, non-stop
Boeing 737 MAX 9 (7M9)

Hawaiian Airlines HA7125

19:32

Saint Louis (STL) 1

22:00

Seattle-Tacoma (SEA)

Effective 2025-07-08 through 2025-07-14

Mon

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 291)

Duration: 4:28, non-stop
Boeing 737 (737)

Hawaiian Airlines HA7125

19:32

Saint Louis (STL) 1

22:00

Seattle-Tacoma (SEA)

Effective 2025-07-11 through 2025-07-20

Mon
-

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 291)

Duration: 4:28, non-stop
Boeing 737 MAX 9 (7M9)

Hawaiian Airlines HA7125

19:32

Saint Louis (STL) 1

22:00

Seattle-Tacoma (SEA)

Effective 2025-07-21 through 2025-07-29

Mon

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 291)

Duration: 4:28, non-stop
Boeing 737 (737)

Hawaiian Airlines HA7125

19:32

Saint Louis (STL) 1

22:00

Seattle-Tacoma (SEA)

Effective 2025-07-23 through 2025-08-03

Mon
-

Tue
-

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 291)

Duration: 4:28, non-stop
Boeing 737 MAX 9 (7M9)

Hawaiian Airlines HA7125

19:32

Saint Louis (STL) 1

22:00

Seattle-Tacoma (SEA)

Effective 2025-08-04 through 2025-08-18

Mon

Tue
-

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 291)

Duration: 4:28, non-stop
Boeing 737 MAX 9 (7M9)

Hawaiian Airlines HA7125

19:32

Saint Louis (STL) 1

22:00

Seattle-Tacoma (SEA)

Effective 2025-08-05 through 2025-08-12

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 291)

Duration: 4:28, non-stop
Boeing 737 (737)

Hawaiian Airlines HA7125

19:32

Saint Louis (STL) 1

22:00

Seattle-Tacoma (SEA)

Operates only on 2025-08-19

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 291)

Duration: 4:28, non-stop
Boeing 737 MAX 9 (7M9)

Hawaiian Airlines HA7125

19:36

Saint Louis (STL) 1

22:00

Seattle-Tacoma (SEA)

Effective 2025-08-20 through 2025-10-03

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 291)

Duration: 4:24, non-stop
Boeing 737 (737)

Hawaiian Airlines HA7126

14:55

Saint Louis (STL) 1

17:21

Seattle-Tacoma (SEA)

Effective from 2025-10-04

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 388)

Duration: 4:26, non-stop
Boeing 737 (737)

Hawaiian Airlines HA7126

15:03

Saint Louis (STL) 1

17:32

Seattle-Tacoma (SEA)

Effective 2025-05-15 through 2025-06-11

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 315)

Duration: 4:29, non-stop
Boeing 737 MAX 9 (7M9)

Hawaiian Airlines HA7126

15:08

Saint Louis (STL) 1

17:39

Seattle-Tacoma (SEA)

Valid until 2025-05-06

Mon

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 388)

Duration: 4:31, non-stop
Boeing 737 MAX 9 (7M9)

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A domestic route departing from the Saint Louis airport (STL) and arriving at Seattle-Tacoma airport (SEA).
The flight distance is 1704 miles, or 2743 km.
The timezone of the departure airport is UTC-6 , and the timezone of the arrival airport is UTC-8 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
For direct flights, the flight time varies between 4:17 and 4:31.

Return (SEA-STL) flights

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