JAL flights from Ronald Reagan Washington (DCA) to Seattle-Tacoma (SEA).

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Mon,Tue,Thu-Sun 08:00 Ronald Reagan Washington (DCA) 2 11:04 Seattle-Tacoma (SEA)
JAL JL 6363 Non-stop Boeing 737-800 (73H) 6:04 Valid until 2026-01-06
Codeshare flight, operated by Alaska Airlines.(AS 1)
Daily 08:00 Ronald Reagan Washington (DCA) 2 11:09 Seattle-Tacoma (SEA)
JAL JL 6363 Non-stop Boeing 737-800 (73H) 6:09 Effective 2026-01-07 through 2026-02-11
Codeshare flight, operated by Alaska Airlines.(AS 1)
Mon,Wed-Sun 08:00 Ronald Reagan Washington (DCA) 2 11:10 Seattle-Tacoma (SEA)
JAL JL 6363 Non-stop Boeing 737-800 (73H) 6:10 Effective 2026-02-12 through 2026-02-23
Codeshare flight, operated by Alaska Airlines.(AS 1)
Tue 08:00 Ronald Reagan Washington (DCA) 2 11:10 Seattle-Tacoma (SEA)
JAL JL 6363 Non-stop Boeing 737 MAX 8 (7M8) 6:10 Operates only on 2026-02-17
Codeshare flight, operated by Alaska Airlines.(AS 1)
Daily 08:00 Ronald Reagan Washington (DCA) 2 11:10 Seattle-Tacoma (SEA)
JAL JL 6363 Non-stop Boeing 737-800 (73H) 6:10 Effective 2026-02-24 through 2026-03-17
Codeshare flight, operated by Alaska Airlines.(AS 1)
Wed 08:00 Ronald Reagan Washington (DCA) 2 10:55 Seattle-Tacoma (SEA)
JAL JL 6363 Non-stop Boeing 737-800 (73H) 5:55 Operates only on 2026-03-18
Codeshare flight, operated by Alaska Airlines.(AS 1)
Daily 08:00 Ronald Reagan Washington (DCA) 2 10:58 Seattle-Tacoma (SEA)
JAL JL 6363 Non-stop Boeing 737-800 (73H) 5:58 Effective 2026-03-19 through 2026-05-12
Codeshare flight, operated by Alaska Airlines.(AS 1)
Daily 08:00 Ronald Reagan Washington (DCA) 2 10:39 Seattle-Tacoma (SEA)
JAL JL 6363 Non-stop Boeing 737-800 (73H) 5:39 Effective 2026-05-13 through 2026-06-09
Codeshare flight, operated by Alaska Airlines.(AS 1)
Daily 08:00 Ronald Reagan Washington (DCA) 2 10:58 Seattle-Tacoma (SEA)
JAL JL 6363 Non-stop Boeing 737-800 (73H) 5:58 Effective from 2026-06-10
Codeshare flight, operated by Alaska Airlines.(AS 1)




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JAL flights from Ronald Reagan Washington (DCA) to Seattle-Tacoma (SEA).
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
JAL JL6363
08:00
Ronald Reagan Washington (DCA) 2

11:04
Seattle-Tacoma (SEA)
Valid until 2026-01-06
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 1)
Duration: 6:04, non-stop
Boeing 737-800 (73H)
Direct Codeshare Flights:
JAL JL6363
08:00
Ronald Reagan Washington (DCA) 2

11:09
Seattle-Tacoma (SEA)
Effective 2026-01-07 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 1)
Duration: 6:09, non-stop
Boeing 737-800 (73H)
Direct Codeshare Flights:
JAL JL6363
08:00
Ronald Reagan Washington (DCA) 2

11:10
Seattle-Tacoma (SEA)
Effective 2026-02-12 through 2026-02-23
Mon
Tue
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 1)
Duration: 6:10, non-stop
Boeing 737-800 (73H)
Direct Codeshare Flights:
JAL JL6363
08:00
Ronald Reagan Washington (DCA) 2

11:10
Seattle-Tacoma (SEA)
Operates only on 2026-02-17
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 1)
Duration: 6:10, non-stop
Boeing 737 MAX 8 (7M8)
Direct Codeshare Flights:
JAL JL6363
08:00
Ronald Reagan Washington (DCA) 2

11:10
Seattle-Tacoma (SEA)
Effective 2026-02-24 through 2026-03-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 1)
Duration: 6:10, non-stop
Boeing 737-800 (73H)
Direct Codeshare Flights:
JAL JL6363
08:00
Ronald Reagan Washington (DCA) 2

10:55
Seattle-Tacoma (SEA)
Operates only on 2026-03-18
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 1)
Duration: 5:55, non-stop
Boeing 737-800 (73H)
Direct Codeshare Flights:
JAL JL6363
08:00
Ronald Reagan Washington (DCA) 2

10:58
Seattle-Tacoma (SEA)
Effective 2026-03-19 through 2026-05-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 1)
Duration: 5:58, non-stop
Boeing 737-800 (73H)
Direct Codeshare Flights:
JAL JL6363
08:00
Ronald Reagan Washington (DCA) 2

10:39
Seattle-Tacoma (SEA)
Effective 2026-05-13 through 2026-06-09
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 1)
Duration: 5:39, non-stop
Boeing 737-800 (73H)
Direct Codeshare Flights:
JAL JL6363
08:00
Ronald Reagan Washington (DCA) 2

10:58
Seattle-Tacoma (SEA)
Effective from 2026-06-10
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 1)
Duration: 5:58, non-stop
Boeing 737-800 (73H)
  • A domestic route departing from the Ronald Reagan Washington airport (DCA) and arriving at Seattle-Tacoma airport (SEA).
  • The flight distance is 2321 miles, or 3736 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 5:39 and 6:10.
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