Seattle / Tacoma (SEA) to Boston (BOS) flight deal in economy from $297
SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
BOSLogan International Airport
Boston, United States
$460 USD
-35%$297 USD
Verified 1 day agoJuly 2026
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Extremely Rare Availability
4% of dates checked are available within 10% of the lowest price
Friday, July 24th, 2026
10 round-trip options
Returning
Wed, Jul 29, 2026•5 Day Trip
$477 USD
Returning
Thu, Jul 30, 2026•6 Day Trip
$437 USD
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Fri, Jul 31, 2026•7 Day Trip
$582 USD
Returning
Sat, Aug 1, 2026•8 Day Trip
$610 USD
Returning
Sun, Aug 2, 2026•9 Day Trip
$527 USD
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Mon, Aug 3, 2026•10 Day Trip
$437 USD
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Tue, Aug 4, 2026•11 Day Trip
$437 USD
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Wed, Aug 5, 2026•12 Day Trip
$477 USD
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Thu, Aug 6, 2026•13 Day Trip
$462 USD
Returning
Fri, Aug 7, 2026•14 Day Trip
$587 USD