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

Monday, December 21st, 2026

7 round-trip options

Returning
Sat, Dec 26, 2026•5 Day Trip
$614 USD
Google Flights
Returning
Tue, Dec 29, 2026•8 Day Trip
$444 USD
Google Flights
Returning
Wed, Dec 30, 2026•9 Day Trip
$444 USD
Google Flights
Returning
Fri, Jan 1, 2027•11 Day Trip
$476 USD
Google Flights
Returning
Sat, Jan 2, 2027•12 Day Trip
$658 USD
Google Flights
Returning
Sun, Jan 3, 2027•13 Day Trip
$444 USD
Google Flights
Returning
Mon, Jan 4, 2027•14 Day Trip
$444 USD
Google Flights