SFO to ACK from $312 in economy – flightdeals.net

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JetBlue Airways

B6JetBlue Airways

Round Trip•Economy

San Francisco International Airport

San Francisco, United States

Nantucket Memorial Airport

Nantucket, United States

$631 USD

-51%$312 USD

Verified 15 days ago

September 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

31$376 1$490 2$483 3$705 4$586 5$483 6$439 7$376 8$433 9$581 10$700 11$499 12$396 13$488 14$371 15$581 16$586 17$705 18$504 19$396 20$488 21 22$371 23$586 24$823 25$504 26$396 27$488 28 29$371 30$500 1$823 2$504 3$371 4$488

Extremely Rare Availability

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

Monday, September 14th, 2026

4 round-trip options

Returning

Sat, Sep 19, 2026•5 Day Trip

$371 USD

Returning

Sun, Sep 20, 2026•6 Day Trip

$896 USD

Returning

Mon, Sep 21, 2026•7 Day Trip

$581 USD

Returning

Mon, Sep 28, 2026•14 Day Trip

$499 USD