Baltimore-Washington (BWI) to Seattle / Tacoma (SEA) flight deal in economy from $127

Southwest AirlinesWNSouthwest 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
$388 USD
-67%$127 USD
Verified about 8 hours ago
Rare Availability
5% of dates checked are available within 10% of the lowest price

Monday, June 15th, 2026

0 round-trip options

No flight details available for this date.