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

October 2026

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

28$322 29$273 30$273 1$300 2$300 3$295 4$300 5$322 6$273 7$273 8$300 9$300 10$295 11$340 12$300 13$295 14$273 15$300 16$300 17$295 18$362 19$322 20 21 22 23 24 25 26 27 28 29 30 31 1

Fair Availability

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

Friday, October 9th, 2026

7 round-trip options

Returning

Wed, Oct 14, 2026•5 Day Trip

$300 USD

Google Flights

Returning

Thu, Oct 15, 2026•6 Day Trip

$327 USD

Google Flights

Returning

Fri, Oct 16, 2026•7 Day Trip

$327 USD

Google Flights

Returning

Mon, Oct 19, 2026•10 Day Trip

$327 USD

Google Flights

Returning

Tue, Oct 20, 2026•11 Day Trip

$300 USD

Google Flights

Returning

Wed, Oct 21, 2026•12 Day Trip

$300 USD

Google Flights

Returning

Thu, Oct 22, 2026•13 Day Trip

$327 USD

Google Flights

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

Logan International Airport

Seattle–Tacoma International Airport

October 2026

Friday, October 9th, 2026