Flight time from Seattle to Dulles
SEA → IAD · Seattle–Tacoma International Airport to Washington Dulles International Airport
The flight from Seattle (SEA) to Dulles (IAD) takes about 4h 20m nonstop on a narrowbody airliner, covering 2,300 miles (3,702 km).
How the aircraft compares
Regional jetEmbraer E175, CRJ
4h 31m
NarrowbodyBoeing 737, Airbus A320
4h 20m
WidebodyBoeing 787, A350, 777
4h 2m
When will you arrive?
Dulles is 3 hours ahead of Seattle. You cross 3 time zones heading east. Eastbound trips like this one tend to be harder to adjust to, so plan for a day or two of jet lag.
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Common questions
- How long is the flight from Seattle to Dulles?
- About 4h 20m nonstop on a narrowbody airliner. Airlines add taxi and buffer time to the schedule.
- How far is it?
- 2,300 miles, or 3,702 km (1,999 nautical miles) in a straight line.
- What is the time difference?
- Dulles is 3 hours ahead of Seattle.
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