Cheap SEA to Washington, DC flights

Book your SEA to DCA flights with Expedia and find last-minute Seattle to Washington, DC airfare. Expedia offers discount airfare on multiple airline carriers that fly direct and indirect routes between SEA and DCA, with new flight deals and promotions almost daily. When you book your next trip from Seattle Tacoma Intl. to Ronald Reagan Washington National with Expedia, you can rest assured you’re getting great ticket prices and excellent service from one of the world’s most trusted travel providers.

Popular Flights from Washington, DC, District of Columbia

Browse popular flight destinations from Washington, DC (DCA), and plan your next exciting trip. Expedia has cheap flights from Washington, DC on multiple airline carriers, so book your next trip today!

SEA to DCA Route Map

Seattle to Washington, DC Flights, Stats and Airplanes

Route information for flights from Seattle Tacoma Intl. to Ronald Reagan Washington National.

Distance:
2,322.66 miles

Airline carriers and aircraft used on flights from SEA to DCA

Airline Carrier

Alaska Airlines, Inc.

Aircraft

Boeing 737-800 (winglets) pax

SEA - Seattle Tacoma Intl. Airlines

Browse the most popular airlines servicing the Seattle (SEA) airport. Visit their flights pages to learn more about the most popular routes these carriers fly.

DCA - Ronald Reagan Washington National Airlines

Browse the most popular airlines servicing the Washington, DC (DCA) airport. Visit their flights pages to learn more about the most popular routes these carriers fly.

Interesting Facts About Flights from Seattle to Washington, DC (SEA to DCA)

  • The shortest flight between SEA and DCA takes about 267 minutes.
  • Alaska Airlines offers the shortest flight times from Seattle to Washington.
  • The shortest flight distance between Seattle and Washington is 2329 miles.
  • There were 93,055 passengers that flew from Seattle to Washington in 2009.
  • The largest aircraft servicing flights between Seattle and Washington from Alaska Airlines is the B737-8 built by Boeing with 157 seats.
  • Alaska Airlines operated flights from SEA to DCA using 2 types of aircraft in 2009.
  • 113,170 seats were available on flights from SEA to DCA in 2009. Of those seats, a total of 93,055 passengers flew on all flights from SEA to DCA that year.
  • In 2009, there was just one airline company serving flights from Seattle to Washington.
  • Flight #2, operated by Alaska Airlines, was the flight with the most delays in 2009, with 2 minutes average delay between flights from Seattle to Washington.
  • The smallest aircraft servicing flights from SEA to DCA for Alaska Airlines is the B737-7 built by Boeing with 124 seats.
  • The average flight time from Seattle, WA to Washington, DC takes about 267 minutes.
  • The oldest aircraft servicing trips from Seattle, WA to Washington, DC in 2009 was Alaska Airlines' B737-7 from Boeing which started flying in 1998.
  • The average aircraft occupancy on flights from Seattle to Washington in 2009 was 80.72%.
  • The newest aircraft servicing SEA to DCA in 2009 was Alaska Airlines' B737-8 from Boeing. The B737-8 started flying in 1998.
  • Alaska Airlines offers flights from Seattle, WA to Washington, DC.
  • Alaska Airlines carried a total of 93,055 passengers from SEA to DCA in 2009.
  • Alaska Airlines operates the shortest flights from Seattle to Washington.

(Source: FAA & BTS 2009 Databases)