JAL
flight
JL 6357:
Boston Logan - Seattle-Tacoma
Boston Logan - Seattle-Tacoma
FLIGHT SCHEDULE
Direct Codeshare Flights:
JAL JL6357
Effective 2026-01-07 through 2026-01-14
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by Alaska Airlines.
(AS 459)
Duration: 6:34, non-stop Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
JAL JL6357
Effective 2026-01-10 through 2026-01-16
Mon
-
-
Tue
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-
Wed
-
-
Thu
Fri
Sat
Sun
-
-
Codeshare flight, operated by Alaska Airlines.
(AS 459)
Duration: 6:34, non-stop Boeing 737 (73J)
Direct Codeshare Flights:
JAL JL6357
Effective 2026-01-17 through 2026-01-28
Mon
Tue
Wed
Thu
-
-
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines.
(AS 459)
Duration: 6:34, non-stop Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
JAL JL6357
Effective 2026-01-22 through 2026-02-05
Mon
-
-
Tue
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Wed
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Thu
Fri
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-
Sat
-
-
Sun
-
-
Codeshare flight, operated by Alaska Airlines.
(AS 459)
Duration: 6:34, non-stop Boeing 737 (73J)
Direct Codeshare Flights:
JAL JL6357
Operates only on 2026-01-30
Mon
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Tue
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Wed
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Thu
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Fri
Sat
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Sun
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Codeshare flight, operated by Alaska Airlines.
(AS 459)
Duration: 6:34, non-stop Boeing 737-800 (73H)
Direct Codeshare Flights:
JAL JL6357
Effective 2026-01-31 through 2026-02-11
Mon
Tue
Wed
Thu
-
-
Fri
-
-
Sat
Sun
Codeshare flight, operated by Alaska Airlines.
(AS 459)
Duration: 6:34, non-stop Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
JAL JL6357
Operates only on 2026-02-06
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
Sat
-
-
Sun
-
-
Codeshare flight, operated by Alaska Airlines.
(AS 459)
Duration: 6:34, non-stop Boeing 737 (73J)
Direct Codeshare Flights:
JAL JL6357
Effective 2026-02-12 through 2026-02-19
Mon
-
-
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines.
(AS 459)
Duration: 6:33, non-stop Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
JAL JL6357
Effective 2026-02-16 through 2026-02-23
Mon
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by Alaska Airlines.
(AS 459)
Duration: 6:33, non-stop Boeing 737-800 (73H)
Direct Codeshare Flights:
JAL JL6357
Effective 2026-02-20 through 2026-02-27
Mon
-
-
Tue
-
-
Wed
-
-
Thu
Fri
Sat
-
-
Sun
-
-
Codeshare flight, operated by Alaska Airlines.
(AS 459)
Duration: 6:33, non-stop Boeing 737 (73J)
Direct Codeshare Flights:
JAL JL6357
Effective 2026-02-21 through 2026-03-04
Mon
-
-
Tue
Wed
Thu
-
-
Fri
-
-
Sat
Sun
Codeshare flight, operated by Alaska Airlines.
(AS 459)
Duration: 6:33, non-stop Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
JAL JL6357
Effective 2026-03-02 through 2026-03-08
Mon
Tue
-
-
Wed
-
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines.
(AS 459)
Duration: 6:33, non-stop Boeing 737 (73J)
Direct Codeshare Flights:
JAL JL6357
Effective 2026-03-09 through 2026-03-14
Mon
Tue
Wed
Thu
-
-
Fri
-
-
Sat
Sun
-
-
Codeshare flight, operated by Alaska Airlines.
(AS 459)
Duration: 6:33, non-stop Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
JAL JL6357
Effective 2026-03-12 through 2026-03-16
Mon
Tue
-
-
Wed
-
-
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by Alaska Airlines.
(AS 459)
Duration: 6:33, non-stop Boeing 737 (73J)
Direct Codeshare Flights:
JAL JL6357
Operates only on 2026-03-17
Mon
-
-
Tue
Wed
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-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by Alaska Airlines.
(AS 459)
Duration: 6:33, non-stop Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
JAL JL6357
Operates only on 2026-03-18
Mon
-
-
Tue
-
-
Wed
Thu
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-
Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by Alaska Airlines.
(AS 459)
Duration: 6:23, non-stop Boeing 737 (73J)
Direct Codeshare Flights:
JAL JL6357
Effective 2026-03-19 through 2026-05-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines.
(AS 459)
Duration: 6:28, non-stop Boeing 737 (73J)
Direct Codeshare Flights:
JAL JL6357
Effective 2026-06-10 through 2026-10-23
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines.
(AS 459)
Duration: 6:22, non-stop Boeing 737 (73J)
Direct Codeshare Flights:
JAL JL6357
Effective from 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines.
(AS 459)
Duration: 6:22, non-stop Boeing 737 (73J)
Direct Codeshare Flights:
JAL JL6357
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
-
Codeshare flight, operated by Alaska Airlines.
(AS 459)
Duration: 6:22, non-stop Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
JAL JL6357
Operates only on 2026-01-04
Mon
-
-
Tue
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Wed
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Thu
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-
Fri
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-
Sat
-
-
Sun
Codeshare flight, operated by Alaska Airlines.
(AS 459)
Duration: 6:22, non-stop Boeing 737 (73J)
Direct Codeshare Flights:
JAL JL6357
Operates only on 2026-01-06
Mon
-
-
Tue
Wed
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-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
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Codeshare flight, operated by Alaska Airlines.
(AS 459)
Duration: 6:22, non-stop Boeing 737-800 (73H)
Direct Codeshare Flights:
JAL JL6357
Effective 2026-05-13 through 2026-06-09
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines.
(AS 537)
Duration: 6:09, non-stop Boeing 737 (73J)
Direct Codeshare Flights:
JAL JL6357
Operates only on 2026-10-24
Mon
-
-
Tue
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Wed
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Thu
-
-
Fri
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-
Sat
Sun
-
-
Codeshare flight, operated by Alaska Airlines.
(AS 537)
Duration: 6:20, non-stop Boeing 737 (73J)
- JL 6357 is a domestic flight departing from the Boston Logan airport (BOS) and arriving at Seattle-Tacoma airport (SEA).
- The flight distance is 2487 miles, or 4003 km.
- The timezone of the departure airport is UTC-5 , 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 6:09 and 6:34.