JAL flight JL 5438: Seattle-Tacoma - Saint Louis

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 12:46 Seattle-Tacoma (SEA) 18:37 Saint Louis (STL) 1
JL 5438 Non-stop Boeing 737 (73J) 3:51 Effective 2026-06-10 through 2026-10-02
Codeshare flight, operated by Alaska Airlines.(AS 291)
Fri 17:00 Seattle-Tacoma (SEA) 22:46 Saint Louis (STL) 1
JL 5438 Non-stop Boeing 737 MAX 9 (7M9) 3:46 Operates only on 2026-01-09
Codeshare flight, operated by Alaska Airlines.(AS 388)
Fri 17:00 Seattle-Tacoma (SEA) 22:46 Saint Louis (STL) 1
JL 5438 Non-stop Boeing 737 (73J) 3:46 Operates only on 2026-01-16
Codeshare flight, operated by Alaska Airlines.(AS 388)
Fri 17:00 Seattle-Tacoma (SEA) 22:46 Saint Louis (STL) 1
JL 5438 Non-stop Boeing 737 MAX 9 (7M9) 3:46 Effective 2026-01-23 through 2026-02-06
Codeshare flight, operated by Alaska Airlines.(AS 388)
Sat 17:56 Seattle-Tacoma (SEA) 23:50 Saint Louis (STL) 1
JL 5438 Non-stop Boeing 737-800 (73H) 3:54 Operates only on 2026-01-03
Codeshare flight, operated by Alaska Airlines.(AS 472)
Wed 18:00 Seattle-Tacoma (SEA) 23:56 Saint Louis (STL) 1
JL 5438 Non-stop Boeing 737 (73J) 3:56 Operates only on 2026-03-18
Codeshare flight, operated by Alaska Airlines.(AS 615)
Daily 18:00 Seattle-Tacoma (SEA) 23:55 Saint Louis (STL) 1
JL 5438 Non-stop Boeing 737 (73J) 3:55 Effective 2026-03-19 through 2026-05-12
Codeshare flight, operated by Alaska Airlines.(AS 615)
Daily 18:04 Seattle-Tacoma (SEA) 00:04 Saint Louis (STL) 1
JL 5438 Non-stop Boeing 737 (73J) 4:00 Effective 2026-05-13 through 2026-06-09
Codeshare flight, operated by Alaska Airlines.(AS 615)
The flight arrives 1 day after departure.
Mon,Tue,Sun 18:05 Seattle-Tacoma (SEA) 23:59 Saint Louis (STL) 1
JL 5438 Non-stop Boeing 737 MAX 9 (7M9) 3:54 Valid until 2026-01-04
Codeshare flight, operated by Alaska Airlines.(AS 472)
Mon,Wed-Fri 18:05 Seattle-Tacoma (SEA) 23:59 Saint Louis (STL) 1
JL 5438 Non-stop Boeing 737 (73J) 3:54 Valid until 2026-01-05
Codeshare flight, operated by Alaska Airlines.(AS 472)
Tue 18:05 Seattle-Tacoma (SEA) 23:59 Saint Louis (STL) 1
JL 5438 Non-stop Boeing 737 MAX 9 (7M9) 3:54 Operates only on 2026-01-06
Codeshare flight, operated by Alaska Airlines.(AS 1444)
Daily 18:06 Seattle-Tacoma (SEA) 23:59 Saint Louis (STL) 1
JL 5438 Non-stop Boeing 737 (73J) 3:53 Effective from 2026-10-03
Codeshare flight, operated by Alaska Airlines.(AS 472)
Thu,Fri,Sun 18:07 Seattle-Tacoma (SEA) 23:59 Saint Louis (STL) 1
JL 5438 Non-stop Boeing 737 (73J) 3:52 Effective 2026-02-12 through 2026-02-22
Codeshare flight, operated by Alaska Airlines.(AS 615)
Mon 18:07 Seattle-Tacoma (SEA) 23:59 Saint Louis (STL) 1
JL 5438 Non-stop Boeing 737 MAX 9 (7M9) 3:52 Operates only on 2026-02-16
Codeshare flight, operated by Alaska Airlines.(AS 615)
Mon,Thu,Fri,Sun 18:07 Seattle-Tacoma (SEA) 23:59 Saint Louis (STL) 1
JL 5438 Non-stop Boeing 737 (73J) 3:52 Effective 2026-02-23 through 2026-03-06
Codeshare flight, operated by Alaska Airlines.(AS 615)
Mon,Fri,Sun 18:07 Seattle-Tacoma (SEA) 23:59 Saint Louis (STL) 1
JL 5438 Non-stop Boeing 737 (73J) 3:52 Effective 2026-03-08 through 2026-03-15
Codeshare flight, operated by Alaska Airlines.(AS 615)
Thu 18:07 Seattle-Tacoma (SEA) 23:59 Saint Louis (STL) 1
JL 5438 Non-stop Boeing 737 MAX 9 (7M9) 3:52 Operates only on 2026-03-12
Codeshare flight, operated by Alaska Airlines.(AS 615)
Mon 18:07 Seattle-Tacoma (SEA) 23:59 Saint Louis (STL) 1
JL 5438 Non-stop Boeing 737-800 (73H) 3:52 Operates only on 2026-03-16
Codeshare flight, operated by Alaska Airlines.(AS 615)


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JAL flight JL 5438:
Seattle-Tacoma - Saint Louis
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
JAL JL5438
12:46
Seattle-Tacoma (SEA)

18:37
Saint Louis (STL) 1
Effective 2026-06-10 through 2026-10-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 291)
Duration: 3:51, non-stop
Boeing 737 (73J)
Direct Codeshare Flights:
JAL JL5438
17:00
Seattle-Tacoma (SEA)

22:46
Saint Louis (STL) 1
Operates only on 2026-01-09
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 388)
Duration: 3:46, non-stop
Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
JAL JL5438
17:00
Seattle-Tacoma (SEA)

22:46
Saint Louis (STL) 1
Operates only on 2026-01-16
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 388)
Duration: 3:46, non-stop
Boeing 737 (73J)
Direct Codeshare Flights:
JAL JL5438
17:00
Seattle-Tacoma (SEA)

22:46
Saint Louis (STL) 1
Effective 2026-01-23 through 2026-02-06
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 388)
Duration: 3:46, non-stop
Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
JAL JL5438
17:56
Seattle-Tacoma (SEA)

23:50
Saint Louis (STL) 1
Operates only on 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 472)
Duration: 3:54, non-stop
Boeing 737-800 (73H)
Direct Codeshare Flights:
JAL JL5438
18:00
Seattle-Tacoma (SEA)

23:56
Saint Louis (STL) 1
Operates only on 2026-03-18
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 615)
Duration: 3:56, non-stop
Boeing 737 (73J)
Direct Codeshare Flights:
JAL JL5438
18:00
Seattle-Tacoma (SEA)

23:55
Saint Louis (STL) 1
Effective 2026-03-19 through 2026-05-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 615)
Duration: 3:55, non-stop
Boeing 737 (73J)
Direct Codeshare Flights:
JAL JL5438
18:04
Seattle-Tacoma (SEA)

00:04(+1)
Saint Louis (STL) 1
Effective 2026-05-13 through 2026-06-09
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 615)
Duration: 4:00, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
JAL JL5438
18:05
Seattle-Tacoma (SEA)

23:59
Saint Louis (STL) 1
Valid until 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Alaska Airlines. (AS 472)
Duration: 3:54, non-stop
Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
JAL JL5438
18:05
Seattle-Tacoma (SEA)

23:59
Saint Louis (STL) 1
Valid until 2026-01-05
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 472)
Duration: 3:54, non-stop
Boeing 737 (73J)
Direct Codeshare Flights:
JAL JL5438
18:05
Seattle-Tacoma (SEA)

23:59
Saint Louis (STL) 1
Operates only on 2026-01-06
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 1444)
Duration: 3:54, non-stop
Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
JAL JL5438
18:06
Seattle-Tacoma (SEA)

23:59
Saint Louis (STL) 1
Effective from 2026-10-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 472)
Duration: 3:53, non-stop
Boeing 737 (73J)
Direct Codeshare Flights:
JAL JL5438
18:07
Seattle-Tacoma (SEA)

23:59
Saint Louis (STL) 1
Effective 2026-02-12 through 2026-02-22
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Alaska Airlines. (AS 615)
Duration: 3:52, non-stop
Boeing 737 (73J)
Direct Codeshare Flights:
JAL JL5438
18:07
Seattle-Tacoma (SEA)

23:59
Saint Louis (STL) 1
Operates only on 2026-02-16
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 615)
Duration: 3:52, non-stop
Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
JAL JL5438
18:07
Seattle-Tacoma (SEA)

23:59
Saint Louis (STL) 1
Effective 2026-02-23 through 2026-03-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Alaska Airlines. (AS 615)
Duration: 3:52, non-stop
Boeing 737 (73J)
Direct Codeshare Flights:
JAL JL5438
18:07
Seattle-Tacoma (SEA)

23:59
Saint Louis (STL) 1
Effective 2026-03-08 through 2026-03-15
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by Alaska Airlines. (AS 615)
Duration: 3:52, non-stop
Boeing 737 (73J)
Direct Codeshare Flights:
JAL JL5438
18:07
Seattle-Tacoma (SEA)

23:59
Saint Louis (STL) 1
Operates only on 2026-03-12
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 615)
Duration: 3:52, non-stop
Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
JAL JL5438
18:07
Seattle-Tacoma (SEA)

23:59
Saint Louis (STL) 1
Operates only on 2026-03-16
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 615)
Duration: 3:52, non-stop
Boeing 737-800 (73H)
  • JL 5438 is a domestic flight departing from the Seattle-Tacoma airport (SEA) and arriving at Saint Louis airport (STL).
  • The flight distance is 1704 miles, or 2743 km.
  • The timezone of the departure airport is UTC-8 , and the timezone of the arrival airport is UTC-6 . 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 3:46 and 4:00.
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