Washington (IAD) to Seattle / Tacoma (SEA) flight deal in economy from $148

Alaska Airlines, Inc.ASAlaska Airlines, Inc.
One Way•Economy
United StatesIAD

Washington Dulles International Airport

Washington, United States
United StatesSEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States
$248 USD
-40%$148 USD
Verified about 2 hours ago
Limited Availability
15% of dates checked are available within 10% of the lowest price

Monday, January 18th, 2027

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