Seattle / Tacoma (SEA) to Washington (DCA) flight deal in economy from $173

United AirlinesUAUnited Airlines
One Way•Economy
United StatesSEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States
United StatesDCA

Ronald Reagan Washington National Airport

Washington, United States
$223 USD
-22%$173 USD
Verified about 11 hours ago
Fair Availability
22% of dates checked are available within 10% of the lowest price

Tuesday, October 6th, 2026

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