Flight Routes from Seattle Tacoma to Washington DC

Compare cheap outbound and return flights from Seattle-Tacoma (SEA) to Washington DC (DCA) and find the best offer from numerous airlines and travel agencies.

Trip type
Fastest outbound flight
Fastest inbound flight
non-stop flights
17x / week
Flight distance
3,743 km
Time difference

Flight schedule from Seattle-Tacoma (SEA) to Washington DC (DCA)

Select a travel date in the flight schedule for the route from Seattle-Tacoma (SEA) to Washington DC (DCA) and compare affordable flight deals.

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Matching outbound flights4 of 4
fromto
dep.arr.
durationstopovers
  1. September 13 – 19, 2026
  2. September 20 – 26, 2026
  3. Sep 27 – Oct 3, 2026
    1. SEADCA
      nonstop
      1. Delta Air Lines
    2. SEADCA
      nonstop
      1. Alaska Airlines
    3. SEADCA
      nonstop
      1. Alaska Airlines
    4. SEADCA
      1 stopover
      1. United Airlines

      Important flight information

      Discover more flights around Seattle-Tacoma and Washington DC

      Departure airport Airport Seattle-Tacoma International Airport, WA (SEA)
      Arrival airport Airport Washington DC - Ronald Reagan National Airport, VA (DCA)
      Destination country Flights to United States
      Departure airport - Destination country Seattle-Tacoma International Airport, WA - United States
      Departure airport - City-Code Seattle-Tacoma International Airport, WA - Washington-DC
      Alternative routes to United States
      Alternative flights to Washington DC
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