Cheap flights from Seattle to Washington, D.C.
Fares from $170 in December 2026. Compare every month below, then book with the site you like.
Search Seattle → Washington, D.C. flightsCheapest Seattle to Washington, D.C. fares by month
Lowest price per person found in recent searches. Prices change often and are checked when you book.
- December 2026Dec 5 · one way · Frontier · 1 stop$170See deal
- February 2027Feb 10 · one way · Frontier · 1 stop$199See deal
Seattle to Washington, D.C. at a glance
- Distance2,300 miles
- Nonstop flight timeabout 5h 30m
- Cheapest monthDecember 2026
- Airport codesSEA → WAS
Plan your Washington, D.C. trip
Cheap hotels in Washington, D.C.Cheap car rental in Washington, D.C.Things to do in Washington, D.C.Flights from Washington, D.C. to Seattle
Travel guides
Frequently asked questions
- How much is a flight from Seattle to Washington, D.C.?
- 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 Seattle to Washington, D.C.?
- December 2026 is currently the cheapest month, from $170. February 2027 is the most expensive, from $199.
- Are there direct flights from Seattle to Washington, D.C.?
- The cheapest fares we found recently have at least one stop. Nonstop flights may still exist at a higher price; tick "Direct only" in the search to check.
- Which airlines fly from Seattle to Washington, D.C.?
- The cheapest recent fares on this route were on Frontier.
- How long is the flight from Seattle to Washington, D.C.?
- Seattle and Washington, D.C. 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 Seattle to Washington, D.C.?
- 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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