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 28th, 2026

7 round-trip options

Returning
Sat, Jan 2, 2027•5 Day Trip
$743 USD
Google Flights
Returning
Tue, Jan 5, 2027•8 Day Trip
$528 USD
Google Flights
Returning
Wed, Jan 6, 2027•9 Day Trip
$528 USD
Google Flights
Returning
Fri, Jan 8, 2027•11 Day Trip
$528 USD
Google Flights
Returning
Sat, Jan 9, 2027•12 Day Trip
$528 USD
Google Flights
Returning
Sun, Jan 10, 2027•13 Day Trip
$528 USD
Google Flights
Returning
Mon, Jan 11, 2027•14 Day Trip
$528 USD
Google Flights