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, December 19th, 2026

7 round-trip options

Returning
Thu, Dec 24, 2026•5 Day Trip
$480 USD
Google Flights
Returning
Sun, Dec 27, 2026•8 Day Trip
$530 USD
Google Flights
Returning
Mon, Dec 28, 2026•9 Day Trip
$509 USD
Google Flights
Returning
Wed, Dec 30, 2026•11 Day Trip
$488 USD
Google Flights
Returning
Thu, Dec 31, 2026•12 Day Trip
$488 USD
Google Flights
Returning
Fri, Jan 1, 2027•13 Day Trip
$520 USD
Google Flights
Returning
Sat, Jan 2, 2027•14 Day Trip
$702 USD
Google Flights