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 agoJune 2026
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Extremely Rare Availability
4% of dates checked are available within 10% of the lowest price
Thursday, June 25th, 2026
10 round-trip options
Returning
Tue, Jun 30, 2026•5 Day Trip
$537 USD
Returning
Wed, Jul 1, 2026•6 Day Trip
$624 USD
Returning
Thu, Jul 2, 2026•7 Day Trip
$647 USD
Returning
Fri, Jul 3, 2026•8 Day Trip
$522 USD
Returning
Sat, Jul 4, 2026•9 Day Trip
$499 USD
Returning
Sun, Jul 5, 2026•10 Day Trip
$520 USD
Returning
Mon, Jul 6, 2026•11 Day Trip
$522 USD
Returning
Tue, Jul 7, 2026•12 Day Trip
$514 USD
Returning
Wed, Jul 8, 2026•13 Day Trip
$612 USD
Returning
Thu, Jul 9, 2026•14 Day Trip
$624 USD