All airlines flying from Seattle-Tacoma (SEA) to Washington Dulles (IAD).

FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 23:30 Seattle-Tacoma (SEA) 07:28 Washington Dulles (IAD) American Airlines AA 9440 Non-stop Boeing 737 (737) 4:58 Effective from 2026-06-10 Codeshare flight, operated by Alaska Airlines.(AS 367) The flight arrives 1 day after departure.

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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 varies between 4:50 and 5:17.

FLIGHT SCHEDULE

Direct Codeshare Flights:

American Airlines AA9440

23:30

07:28(+1)

Effective from 2026-06-10

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 367)

Duration: 4:58, non-stop
Boeing 737 (737)
The flight arrives 1 day after departure.

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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 varies between 4:50 and 5:17.

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