Boston (BOS) to Seattle / Tacoma (SEA) flight deal in economy from $149
BOSLogan International Airport
Boston, United States
SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
$231 USD
-35%$149 USD
Verified about 4 hours agoOctober 2026
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Fair Availability
36% of dates checked are available within 10% of the lowest price
Saturday, October 31st, 2026
No flight details available for this date.