SEA to BOS from $273 in economy – flightdeals.net

Home Premium Fare Deals About

JetBlue Airways

B6JetBlue Airways

Round Trip•Economy

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

Logan International Airport

Boston, United States

$412 USD

-34%$273 USD

Verified 13 days ago

September 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

31$340 1$320 2$295 3$320 4$320 5$295 6$365 7$365 8$320 9$340 10$304 11$315 12$315 13$315 14$300 15$273 16$295 17$300 18$300 19$295 20$300 21$300 22$273 23$273 24$300 25$300 26$273 27$300 28$300 29$273 30$273 1$326 2$322 3$295 4$300

Limited Availability

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

Tuesday, September 15th, 2026

5 round-trip options

Returning

Tue, Sep 22, 2026•7 Day Trip

$273 USD

Returning

Wed, Sep 23, 2026•8 Day Trip

$295 USD

Returning

Thu, Sep 24, 2026•9 Day Trip

$300 USD

Returning

Fri, Sep 25, 2026•10 Day Trip

$300 USD

Returning

Tue, Sep 29, 2026•14 Day Trip

$273 USD