|Best Price Found||$245||The best flight deal from Seattle to Washington Dulles Intl Airport found on momondo in the last 72 hours is $245|
|Fastest flight time||4h 50m||The fastest flight from Seattle to Washington Dulles Intl Airport takes 4h 50m|
|Direct flights||Mon, Tue, Fri and Sat||Direct flights go from Seattle to Washington Dulles Intl Airport on Monday, Tuesday, Friday and Saturday. Airlines offering direct flights are: United Airlines, Alaska Airlines and Japan Airlines.|
The cheapest time of year to fly to Washington Dulles Intl Airport from Seattle is February. Most expensive is December
Sun Country Air
Alaska Airlines, Delta, and Frontier are the most popular carriers operating from Seattle to Washington Dulles Intl Airport
55 days before
The cheapest time to buy a flight from Seattle to Washington Dulles Intl Airport is approximately 55 days to departure
They could have had kiosks for bag tags ! Made us wait in a long line for bag drop off
Price was great. Paying for selecting seats and overhead storage was not nice. Nice new plane. On time flights in both directions.
Flights were changed twice then canceled at the last minute. Previous flights have been changed and canceled. Done with Spirit.
Crew is horrible
Flight attendant for first class is definitely not a morning person. Oh and the WiFi DID NOT WORK!
Some of our partner airlines flying from Seattle/Tacoma Intl to Washington Dulles Intl are adopting new policies due to the global impact of COVID-19. Some of the airlines that may be waiving their cancellation fees are United Airlines, Alaska Airlines, and Delta. You can search for the full list of airlines like United Airlines that are offering this flexibility.
There are 2299.7 mi between Seattle/Tacoma Intl and Washington Dulles Intl. A reasonable flight in good conditions will take 4h 50m.