Finnair flights from Boston Logan (BOS) to Seattle-Tacoma (SEA).

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Tue,Fri,Sun 09:00 Boston Logan (BOS) B 12:09 Seattle-Tacoma (SEA)
Finnair AY 4608 Non-stop Boeing 737 (73J) 6:09 Effective 2026-05-15 through 2026-06-09
Codeshare flight, operated by Alaska Airlines.(AS 537)
Tue,Fri,Sun 09:20 Boston Logan (BOS) B 12:40 Seattle-Tacoma (SEA)
Finnair AY 4608 Non-stop Boeing 737 (73J) 6:20 Effective 2026-06-12 through 2026-08-14
Codeshare flight, operated by Alaska Airlines.(AS 537)
Mon,Fri 09:20 Boston Logan (BOS) B 12:40 Seattle-Tacoma (SEA)
Finnair AY 4608 Non-stop Boeing 737 (73J) 6:20 Effective 2026-08-17 through 2026-09-28
Codeshare flight, operated by Alaska Airlines.(AS 537)
Tue 10:00 Boston Logan (BOS) B 13:26 Seattle-Tacoma (SEA)
Finnair AY 4608 Non-stop Boeing 737 (73J) 6:26 Effective 2026-04-28 through 2026-05-05
Codeshare flight, operated by Alaska Airlines.(AS 537)
Tue,Sun 10:00 Boston Logan (BOS) B 13:26 Seattle-Tacoma (SEA)
Finnair AY 4608 Non-stop Boeing 737 (73J) 6:26 Effective 2026-05-10 through 2026-05-12
Codeshare flight, operated by Alaska Airlines.(AS 537)


Finnair flights from Boston Logan (BOS) to Seattle-Tacoma (SEA).
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:

Effective 2026-05-15 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:

Effective 2026-06-12 through 2026-08-14
Mon
-
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by Alaska Airlines. (AS 537)
Duration: 6:20, non-stop
Boeing 737 (73J)

Direct Codeshare Flights:

Effective 2026-08-17 through 2026-09-28
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 537)
Duration: 6:20, non-stop
Boeing 737 (73J)

Direct Codeshare Flights:

Effective 2026-04-28 through 2026-05-05
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 537)
Duration: 6:26, non-stop
Boeing 737 (73J)

Direct Codeshare Flights:

Effective 2026-05-10 through 2026-05-12
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Alaska Airlines. (AS 537)
Duration: 6:26, non-stop
Boeing 737 (73J)
  • A domestic route 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 6:26.