Direct flights from Washington to Seattle
All flights from DCA to SEA non-stop. There are direct flights from Ronald Reagan Washington National (DCA), District of Columbia, USA to Seattle Tacoma International (SEA), Washington, USA with Alaska Airlines and Delta Air Lines. 21 weekly departures are currently scheduled on this route. Departure times range from 08:00 to 17:04 depending on the schedule period. The flight distance is 2335 miles (3757 km). Flight time ranges from 5 hours and 40 minutes to 6 hours and 6 minutes.
Washington
, USA
Flight schedule from Washington to Seattle with Alaska Airlines
This is a weekly direct flight schedule for Alaska Airlines. Use the arrows or click on the date to change week. Click on any flight departure time to show more information and check availability.
Flight
The timetable & schedule information was updated at 2026-06-15
Flight schedule from Washington to Seattle with Delta Air Lines
This is a weekly direct flight schedule for Delta Air Lines. Use the arrows or click on the date to change week. Click on any flight departure time to show more information and check availability.
Flight
The timetable & schedule information was updated at 2026-06-15
Washington to Seattle scheduled departures
Select a date to see every published non-stop departure between DCA and SEA.
DCA - SEA route facts
-
Distance2335 miles (3757 km)
-
Flight time5 hours and 40 minutes to 6 hours and 6 minutes
-
Airlines Alaska Airlines Delta
-
Airline alliancesoneworld SkyTeam
-
CabinsEconomy Business First
-
Hub airportsAlaska Airlines: SEA (Primary hub.)Delta Air Lines: SEA
-
Departure terminalsAlaska Airlines: Terminal 2Delta Air Lines: Terminal 2
-
AircraftAlaska Airlines: Boeing 737-800 (winglets) Passenger/BBJ2 and Boeing 737MAX 8 PassengerDelta Air Lines: Airbus A321neo
Route FAQ
Nearby airports that offer flights to Seattle (SEA)
From Washington Dulles Airport (IAD)
46 flights per week
