SEA to BOS from $273 in economy

B6JetBlue Airways

Round Trip•Economy

SEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

BOS

Logan International Airport

Boston, United States

$412 USD

-34%$273 USD

Verified 18 days ago

July 2026

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

29 30 1 2 3 4 5$677 6$677 7$677 8$557 9$557 10$557 11$557 12$482 13$482 14$447 15$447 16$467 17$487 18$467 19$487 20$412 21$402 22$422 23$432 24$422 25$422 26$467 27$407 28$387 29$396 30$467 31$432 1$387 2$467

Limited Availability

16% of dates checked are available within 10% of the lowest price

Tuesday, July 28th, 2026

6 round-trip options

Returning

Tue, Aug 4, 2026•7 Day Trip

$387 USD

Google Flights

Returning

Wed, Aug 5, 2026•8 Day Trip

$487 USD

Google Flights

Returning

Thu, Aug 6, 2026•9 Day Trip

$487 USD

Google Flights

Returning

Sat, Aug 8, 2026•11 Day Trip

$487 USD

Google Flights

Returning

Mon, Aug 10, 2026•13 Day Trip

$387 USD

Google Flights

Returning

Tue, Aug 11, 2026•14 Day Trip

$413 USD

Google Flights

Seattle / Tacoma (SEA) to Boston (BOS) flight deal in economy from $273

Seattle–Tacoma International Airport

Logan International Airport

July 2026

Tuesday, July 28th, 2026