BOS to SEA from $273 in economy

B6JetBlue Airways

Round Trip•Economy

BOS

Logan International Airport

Boston, United States

SEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

$405 USD

-33%$273 USD

Verified 13 days ago

September 2026

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

31$326 1$300 2$273 3$320 4$320 5$273 6$342 7$362 8$273 9$273 10$300 11$300 12$273 13$300 14$300 15$273 16$273 17$300 18$300 19$273 20$300 21$300 22$273 23$295 24$300 25$300 26$273 27$300 28$322 29$273 30$273 1$300 2$300 3$295 4$300

Fair Availability

22% of dates checked are available within 10% of the lowest price

Tuesday, September 1st, 2026

7 round-trip options

Returning

Sun, Sep 6, 2026•5 Day Trip

$365 USD

Google Flights

Returning

Mon, Sep 7, 2026•6 Day Trip

$365 USD

Google Flights

Returning

Tue, Sep 8, 2026•7 Day Trip

$320 USD

Google Flights

Returning

Fri, Sep 11, 2026•10 Day Trip

$337 USD

Google Flights

Returning

Sat, Sep 12, 2026•11 Day Trip

$340 USD

Google Flights

Returning

Sun, Sep 13, 2026•12 Day Trip

$337 USD

Google Flights

Returning

Mon, Sep 14, 2026•13 Day Trip

$300 USD

Google Flights

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

Logan International Airport

Seattle–Tacoma International Airport

September 2026

Tuesday, September 1st, 2026