How much is a flight from Seattle to Washington Dulles?

Prices vary based on date, airline, and availability. Compare several options if you're flying between Seattle and Washington.

Pick a travel date to see today’s available fares.

Fares change often — checking several times throughout the week can make a big difference. Booking in advance often means access to lower prices for the Seattle - Washington Dulles route.

Which airports serve Seattle and Washington?

When planning a trip of about 2300 mi, it's a good idea to check flights from surrounding airports too.

• Airports in Seattle: Seattle is connected to 2 airports - Boeing Field, Lake Union.
• Airports in Washington: Washington offers flights from 3 airports - Dulles international, Ronald Reagan, Washington International.

The closest airport isn’t always the cheapest — it’s worth checking the alternatives too. In some cities, smaller airports offer lower fares than the main ones.

Plan your perfect flight from Seattle to Washington Dulles

Jetcost gives you full control over your flight search. Filter by date, time, duration, price, and airline. See round-trip and one-way options from low-cost and full-service carriers like Ryanair, British Airways, Easyjet, and more.

Other popular destinations

Planning a trip to United States? Other frequent searches include: Atlanta, Los Angeles, Miami, New York City, Orlando.

Some airlines include baggage in the fare, others don’t — always check the details before booking. If you're looking for round-trip flights, you can easily see the most convenient combinations.