Washington (DCA) to Seattle / Tacoma (SEA) flight deal in economy from $275

United AirlinesUAUnited Airlines
Round Trip•Economy
United StatesDCA

Ronald Reagan Washington National Airport

Washington, United States
United StatesSEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States
$458 USD
-40%$275 USD
Verified 26 days ago
Limited Availability
12% of dates checked are available within 10% of the lowest price

Tuesday, June 30th, 2026

10 round-trip options

Returning
Sun, Jul 5, 2026•5 Day Trip
$709 USD
Google Flights
Returning
Mon, Jul 6, 2026•6 Day Trip
$650 USD
Google Flights
Returning
Tue, Jul 7, 2026•7 Day Trip
$650 USD
Google Flights
Returning
Wed, Jul 8, 2026•8 Day Trip
$603 USD
Google Flights
Returning
Thu, Jul 9, 2026•9 Day Trip
$613 USD
Google Flights
Returning
Fri, Jul 10, 2026•10 Day Trip
$544 USD
Google Flights
Returning
Sat, Jul 11, 2026•11 Day Trip
$581 USD
Google Flights
Returning
Sun, Jul 12, 2026•12 Day Trip
$660 USD
Google Flights
Returning
Mon, Jul 13, 2026•13 Day Trip
$410 USD
Google Flights
Returning
Tue, Jul 14, 2026•14 Day Trip
$435 USD
Google Flights