Baltimore-Washington (BWI) to Seattle / Tacoma (SEA) flight deal in economy from $258

United AirlinesUAUnited Airlines
Round Trip•Economy
United StatesBWI

Baltimore/Washington International Thurgood Marshall Ai

Baltimore-Washington, United States
United StatesSEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States
$402 USD
-36%$258 USD
Verified 13 days ago
Rare Availability
6% of dates checked are available within 10% of the lowest price

Saturday, July 18th, 2026

7 round-trip options

Returning
Thu, Jul 23, 2026•5 Day Trip
$546 USD
Google Flights
Returning
Fri, Jul 24, 2026•6 Day Trip
$494 USD
Google Flights
Returning
Sat, Jul 25, 2026•7 Day Trip
$628 USD
Google Flights
Returning
Sun, Jul 26, 2026•8 Day Trip
$764 USD
Google Flights
Returning
Wed, Jul 29, 2026•11 Day Trip
$536 USD
Google Flights
Returning
Thu, Jul 30, 2026•12 Day Trip
$568 USD
Google Flights
Returning
Fri, Jul 31, 2026•13 Day Trip
$488 USD
Google Flights