Cheap flights from Washington, D.C. to Seattle
Fares from $170 in December 2026. Compare every month below, then book with the site you like.
Search Washington, D.C. → Seattle flightsCheapest Washington, D.C. to Seattle fares by month
Lowest price per person found in recent searches. Prices change often and are checked when you book.
- November 2026Nov 5 · one way · Alaska Airlines · Direct$192See deal
- December 2026Dec 5 · one way · Frontier · 1 stop$170See deal
- February 2027Feb 10 · one way · Alaska Airlines · 1 stop$196See deal
Washington, D.C. to Seattle at a glance
- Distance2,300 miles
- Nonstop flight timeabout 5h 30m
- Cheapest monthDecember 2026
- Airport codesWAS → SEA
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Frequently asked questions
- How much is a flight from Washington, D.C. to Seattle?
- The cheapest fare we found recently is $170 per person, departing Dec 5 on Frontier. Prices change daily, so search your dates to see today's fares.
- What is the cheapest month to fly from Washington, D.C. to Seattle?
- December 2026 is currently the cheapest month, from $170. February 2027 is the most expensive, from $196.
- Are there direct flights from Washington, D.C. to Seattle?
- Yes. Recent searches found nonstop fares from $192.
- Which airlines fly from Washington, D.C. to Seattle?
- The cheapest recent fares on this route were on Alaska Airlines, Frontier.
- How long is the flight from Washington, D.C. to Seattle?
- Washington, D.C. and Seattle are about 2,300 miles apart, so a nonstop flight takes roughly 5h 30m. Flights with a stop take longer, depending on the connection.
- How do I find the cheapest flight from Washington, D.C. to Seattle?
- Search your dates on Gotoesy. We list fares from several booking sites sorted cheapest first, show nearby dates when your day has no saved fare, and send you straight to the seller to book.
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