Cheap flights from Dulles to Seattle

Direct flight: 3,701 km, ~4h 21m from Dulles (IAD) to Seattle (SEA).

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Live fares · IAD → SEA

Frequently asked questions

  • How long is the flight from Dulles to Seattle?

    Direct flights from IAD to SEA cover approximately 3,701 km (2,300 miles), with an estimated flight time of 4h 21m. Operating airlines: AS, DL, UA.

Related guides for this route

Sibling pages — full route detail, airport overviews, visa context, per-airline routes.

Full route page: IAD → SEA Cheapest month to fly to Seattle All flights from Dulles All flights to Seattle Flights to USA Visa-free with USA passport AS routes DL routes UA routes