Book your IAD to SEA flights with Expedia and find last-minute Washington, DC to Seattle airfare. Expedia offers discount airfare on multiple airline carriers that fly direct and indirect routes between IAD and SEA, with new flight deals and promotions almost daily. When you book your next trip from Washington Dulles Intl. to Seattle Tacoma Intl. 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.
IAD to SEA Flight Schedule
|Carrier||Flight||Depart IAD||Arrive SEA||Thu 12/3||Fri 12/4||Sat 12/5||Sun 12/6||Mon 12/7||Tue 12/8||Wed 12/9|
|United Airlines||UA 389||8:18 AM||11:13 AM||Check fare||Check fare||-||-||Check fare||Check fare||Check fare|
|Southwest Airlines||WN 2830||8:50 AM||2:00 PM||•||•||-||•||•||•||•|
|United Airlines||UA 357||12:33 PM||3:28 PM||Check fare||Check fare||-||Check fare||Check fare||Check fare||Check fare|
|United Airlines||UA 326||5:20 PM||8:17 PM||-||-||Check fare||-||-||-||-|
|United Airlines||UA 326||5:33 PM||8:30 PM||Check fare||Check fare||-||Check fare||Check fare||Check fare||Check fare|
|Alaska Airlines||AS 729||6:50 PM||9:55 PM||Check fare||Check fare||Check fare||Check fare||Check fare||Check fare||Check fare|
Browse popular flight destinations from Washington, DC (IAD), and plan your next exciting trip. Expedia has cheap flights from Washington, DC on multiple airline carriers, so book your next trip today!
Browse popular flight destinations from Seattle (SEA), and plan your next exciting trip. Expedia has cheap flights from Seattle on multiple airline carriers, so book your next trip today!
IAD to SEA Route Map
Route information for flights from Washington Dulles Intl. to Seattle Tacoma Intl..
Airline carriers and aircraft used on flights from IAD to SEA
|Continental Airlines||Airbus A319|
|Continental Airlines||Airbus A320-100/200|
|Continental Airlines||Boeing 757-200 pax|
|United Airlines||Airbus A319|
|United Airlines||Airbus A320-100/200|
|United Airlines||Boeing 757-200 pax|
|US Airways||Airbus A319|
|US Airways||Airbus A320-100/200|
|US Airways||Boeing 757-200 pax|
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