Seattle / Tacoma (SEA) to Boston (BOS) flight deal in economy from $384
SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
BOSLogan International Airport
Boston, United States
$527 USD
-27%$384 USD
Verified about 6 hours agoJune 2026
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Limited Availability
16% of dates checked are available within 10% of the lowest price
Friday, June 19th, 2026
1 round-trip options
Returning
Fri, Jul 3, 2026•14 Day Trip
$447 USD