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All scheduled flights from Seattle to Dulles (SEA-IAD)

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United States US
All scheduled flights from SEA to IAD. You can fly from Seattle to Dulles non-stop on every weekday and the flight takes about 5 hours. Flights with stops take between 6 to 12 hours depending on your flight and connection airport.
SEA-IAD
- Flight has a long layover time at the stop-airport and will affect your flight time.
- Change of terminals at the layover airport. This can go quickly or take time depending on the airport.
- Flight is partially or completely overnight (Red-eye flight).
- Airline or one of the airlines in the flight path is a low-cost carrier. Some travelers wants to avoid low-cost airlines.
- This is codeshare flight. A codeshare flight is an agreement between airlines to sell seats on each others flights. Click on the flight to see the actual flight operator.

Flying non-stop between SEA and IAD with is the fastest option. The flight takes about 5 hours and 2 minutes.

IAD is the IATA airport code for Washington Dulles International Airport, Dulles, Virginia.

The transfer from IAD is 34 minutes by car to Washington DC.

Airlines that offer direct flights from Seattle (SEA) to Dulles (IAD) is United Airlines, Delta Air Lines and Alaska Airlines.

The Boeing 737MAX 8 Passenger with United Airlines has 166 seats and the Code 221 with Delta Air Lines has 109 seats.

It all depends on what dates you plan on flying. But the approximate round-trip price for one passenger with Delta is $385 and with Alaska Airlines $563.