Route Guide
SEA→DCAmedium haul
Seattle–Tacoma International Airport (Seattle) to Ronald Reagan Washington National Airport (Washington) — 3,738 km, ~4h 39m estimated flight time.
View DCA → SEA insteadAirports on This Route
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Route Overview
SEA to DCA covers a great-circle distance of 3,738 km (2,323 miles), classified as a medium haul route. At typical cruise speed, the estimated flight time is around 4h 39m — actual block time varies by aircraft type, winds and routing. Washington is 3 hours ahead of Seattle (standard offset, not accounting for daylight saving time). This is a domestic route within United States. Route data indicates this city pair has historically been served nonstop.
Airlines on This Route
AS
Alaska Airlines
ALASKA
Aircraft types on record: 73H
Airline and schedule data comes from historical route records and may not reflect current, seasonal or codeshare-only service. Always confirm live schedules with the airline before booking.
Other Routes from Seattle
SEA → BWI
Baltimore/Washington International Thurgood Marshall Airport · Baltimore
3,748 km · medium haul
SEA → TPA
Tampa International Airport · Tampa
4,051 km · long haul
SEA → MCO
Orlando International Airport · Orlando
4,105 km · long haul
SEA → FLL
Fort Lauderdale Hollywood International Airport · Fort Lauderdale
4,368 km · long haul