Seattle / Tacoma (SEA) to Boston (BOS) flight deal in economy from $384

United AirlinesUAUnited Airlines
Round Trip•Economy
United StatesSEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States
United StatesBOS

Logan International Airport

Boston, United States
$527 USD
-27%$384 USD
Verified about 13 hours ago
Limited Availability
16% of dates checked are available within 10% of the lowest price

Monday, January 25th, 2027

0 round-trip options

No flight details available for this date.