Islip, Long Island (ISP) to Nantucket (ACK) Flight Deals from $443!

Promo Code

Cape Air Tickets for Upcoming Islip, Long Island (ISP) to Nantucket (ACK) Flights

*Prices have been viewed by other users searching within the last 48 hours for flights on this route, and may not be currently available. Additional baggage charges and fees may apply. Other terms and conditions may apply.

Find Islip, Long Island to Nantucket plane ticket offers

Find Islip, Long Island to Nantucket plane ticket offers
From
To
Fare Type
Dates
Price
Islip, Long Island (ISP)Nantucket (ACK)One-way
/
Economy		Depart: 04/19/2026

Fares From

$443

Viewed: 1 day ago

Islip, Long Island (ISP)Nantucket (ACK)One-way
/
Economy		Depart: 03/20/2026

Fares From

$443

Viewed: 3 hours ago

Islip, Long Island (ISP)Nantucket (ACK)One-way
/
Economy		Depart: 03/19/2026

Fares From

$463

Viewed: 3 hours ago

Islip, Long Island (ISP)Nantucket (ACK)One-way
/
Economy		Depart: 04/17/2026

Fares From

$513

Viewed: 1 day ago

Islip, Long Island (ISP)Nantucket (ACK)One-way
/
Economy		Depart: 04/20/2026

Fares From

$523

Viewed: 1 day ago

Islip, Long Island (ISP)Nantucket (ACK)One-way
/
Economy		Depart: 03/17/2026

Fares From

$523

Viewed: 3 hours ago

*Fares displayed have been collected within the last 48hrs and may no longer be available at time of booking.

Islip, Long Island (ISP) to Nantucket (ACK) Flight Deals