SEA to ACK from $267 in economy

B6JetBlue Airways

Round Trip•Economy

SEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

ACK

Nantucket Memorial Airport

Nantucket, United States

$562 USD

-52%$267 USD

Verified about 14 hours ago

September 2026

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

31$370 1$375 2$424 3$534 4$304 5$344 6$344 7$447 8$268 9$529 10$658 11$375 12$317 13$344 14$298 15$267 16$521 17$558 18$317 19$267 20$317 21 22$267 23$529 24$558 25$317 26$267 27$317 28 29$267 30$521 1$521 2$298 3$267 4$317

Extremely Rare Availability

2% of dates checked are available within 10% of the lowest price

Thursday, September 17th, 2026

8 round-trip options

Returning

Wed, Sep 23, 2026•6 Day Trip

$558 USD

Google Flights

Returning

Thu, Sep 24, 2026•7 Day Trip

$603 USD

Google Flights

Returning

Fri, Sep 25, 2026•8 Day Trip

$603 USD

Google Flights

Returning

Sat, Sep 26, 2026•9 Day Trip

$558 USD

Google Flights

Returning

Sun, Sep 27, 2026•10 Day Trip

$1,015 USD

Google Flights

Returning

Mon, Sep 28, 2026•11 Day Trip

$630 USD

Google Flights

Returning

Wed, Sep 30, 2026•13 Day Trip

$558 USD

Google Flights

Returning

Thu, Oct 1, 2026•14 Day Trip

$603 USD

Google Flights

Seattle / Tacoma (SEA) to Nantucket (ACK) flight deal in economy from $267

Seattle–Tacoma International Airport

Nantucket Memorial Airport

September 2026

Thursday, September 17th, 2026