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 25 days ago
Limited Availability
12% of dates checked are available within 10% of the lowest price

Friday, July 3rd, 2026

10 round-trip options

Returning
Wed, Jul 8, 2026•5 Day Trip
$667 USD
Google Flights
Returning
Thu, Jul 9, 2026•6 Day Trip
$677 USD
Google Flights
Returning
Fri, Jul 10, 2026•7 Day Trip
$677 USD
Google Flights
Returning
Sat, Jul 11, 2026•8 Day Trip
$714 USD
Google Flights
Returning
Sun, Jul 12, 2026•9 Day Trip
$793 USD
Google Flights
Returning
Mon, Jul 13, 2026•10 Day Trip
$543 USD
Google Flights
Returning
Tue, Jul 14, 2026•11 Day Trip
$568 USD
Google Flights
Returning
Wed, Jul 15, 2026•12 Day Trip
$543 USD
Google Flights
Returning
Thu, Jul 16, 2026•13 Day Trip
$615 USD
Google Flights
Returning
Fri, Jul 17, 2026•14 Day Trip
$702 USD
Google Flights