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Route: SEA → IAD · Great-circle distance · Actual flight time may vary by airline and routing.
Route Details
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About This Route
The Seattle to Washington (Dulles) route is a international flight connection between Seattle, USA and Washington DC, USA. As an international route, passengers should ensure they carry a valid passport and any required visas for their destination country.
Major full-service and low-cost carriers serve this route, including Air India and various international airlines depending on the season. Daily direct flights are available on this route, with additional connecting options via major hubs. For the most up-to-date schedules and seat availability, search on HappyFares.
To book the cheapest Seattle to Washington (Dulles) flights, visit HappyFares and compare fares across all available airlines in a single search. View all Seattle–Washington (Dulles) flights on HappyFares →
Frequently Asked Questions
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