Search flights from Seattle (SEA) to Washington (WAS)

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Cheapest flights to Washington

The cheapest flights available in the next 60 days – prices are updated regularly

Flying from Seattle to Washington: things to know

The most popular route is from Sea-Tac Airport in Seattle to Washington Dulles International Airport in Washington. On average this flight takes 5 hours 8 minutes one way and costs US$741 for the round trip.

Most popular route
Sea-Tac Airport (SEA) to Washington Dulles International Airport (IAD)
Average flight time
5 hours 8 minutes
Average round-trip price
US$741
Fly from Seattle to Washington
9 airlines

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Airlines that fly from Seattle to Washington

Airline options may vary according to recently booked flights and your search terms

  • Alaska Airlines
  • United Airlines
  • American Airlines
  • Frontier Airlines
  • Hawaiian Airlines
  • Southwest Airlines
  • Sun Country
  • Air Tahiti Nui
  • Japan Airlines

Frequently asked questions

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