Flights from Washington (DCA) to Seattle (SEA)

Route intelligence for DCA → SEA: direct flights, stopover options, and timetable coverage in one place.

Show route on mapAll flights from DCAAll flights to SEA

Direct flights

6 direct option(s) across 6 airline(s) · 3,738 km route distance.

  • Finnair · 358 min · 3738 km
  • Japan Airlines · 358 min · 3738 km
  • Korean Air · 358 min · 3738 km
  • Alaska Airlines · 360 min · 3738 km
  • Air Tahiti Nui · 360 min · 3738 km
  • Delta Air Lines · 366 min · 3738 km

Explore these airlines on this city pair

Open each airline route-map page to compare broader network depth before committing to a nonstop or one-stop strategy.

Finnair route map →Japan Airlines route map →Korean Air route map →Alaska Airlines route map →Air Tahiti Nui route map →Delta Air Lines route map →

Stopover options

  • No stopover itineraries available.

Timetable coverage

Published flight numbers: AS1, AS3, AY4596, DL786, JL6363, KE6269, TN2346, TN2347

Published schedule snapshot may be stale

Flight number: AS 1

Operating days: 1, 2, 3, 4, 5, 6, 7

  • DCA 08:00 → SEA 10:58

Plan this city pair

Compare nearby alternatives and airline networks to decide whether a direct trip, one-stop connection, or reverse search gives you better options.

Explore all departures from DCA →Explore all arrivals to SEA →Compare airline network coverage →Browse airports by country →

Route planning checklist

  • Compare direct duration with one-stop total duration before committing to a fare.
  • Check inbound alternatives on flights to SEA when return timing is important.
  • Use Guides for alliance and hub strategy playbooks.
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