Finnair flights from Seattle-Tacoma (SEA) to Washington Dulles (IAD).

FLIGHT SCHEDULE
Direct Codeshare Flights:
Tue 21:55 Seattle-Tacoma (SEA) 05:49 Washington Dulles (IAD) Finnair AY 4573 Non-stop Boeing 737 (73J) 4:54 Effective 2026-04-28 through 2026-05-05 Codeshare flight, operated by Alaska Airlines.(AS 367) The flight arrives 1 day after departure.
Tue,Sun 21:55 Seattle-Tacoma (SEA) 05:49 Washington Dulles (IAD) Finnair AY 4573 Non-stop Boeing 737 (73J) 4:54 Effective 2026-05-10 through 2026-05-12 Codeshare flight, operated by Alaska Airlines.(AS 367) The flight arrives 1 day after departure.

A domestic route departing from the Seattle-Tacoma airport (SEA) and arriving at Washington Dulles airport (IAD).
The flight distance is 2299 miles, or 3699 km.
The timezone of the departure airport is UTC-8 , and the timezone of the arrival airport is UTC-5 . 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 is 4:54.

FLIGHT SCHEDULE

Direct Codeshare Flights:

Finnair AY4573

21:55

05:49(+1)

Effective 2026-04-28 through 2026-05-05

Mon
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Tue

Wed
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Thu
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Fri
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Sat
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Sun
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Codeshare flight, operated by Alaska Airlines. (AS 367)

Duration: 4:54, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.