Boston (BOS) to Seattle / Tacoma (SEA) flight deal in economy from $317
BOSLogan International Airport
Boston, United States
SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
$447 USD
-29%$317 USD
Verified 17 days agoNovember 2026
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Extremely Rare Availability
3% of dates checked are available within 10% of the lowest price
Saturday, November 21st, 2026
5 round-trip options
Returning
Fri, Nov 27, 2026•6 Day Trip
$397 USD
Returning
Sat, Nov 28, 2026•7 Day Trip
$567 USD
Returning
Mon, Nov 30, 2026•9 Day Trip
$427 USD
Returning
Wed, Dec 2, 2026•11 Day Trip
$397 USD
Returning
Thu, Dec 3, 2026•12 Day Trip
$397 USD