Boston (BOS) to Seattle / Tacoma (SEA) flight deal in economy from $303
BOSLogan International Airport
Boston, United States
SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
$417 USD
-27%$303 USD
Verified 1 day agoOctober 2026
Mon
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Limited Availability
10% of dates checked are available within 10% of the lowest price
Saturday, October 3rd, 2026
5 round-trip options
Returning
Fri, Oct 9, 2026•6 Day Trip
$363 USD
Returning
Sun, Oct 11, 2026•8 Day Trip
$332 USD
Returning
Wed, Oct 14, 2026•11 Day Trip
$303 USD
Returning
Thu, Oct 15, 2026•12 Day Trip
$453 USD
Returning
Fri, Oct 16, 2026•13 Day Trip
$332 USD