Title: Cheap flights from Islip to Nantucket from $406 (ISP to ACK) - Expedia.com ![](https://images.trvl-media.com/place/285/e7fbaece-83d0-4f61-81f2-8a09a92b48d7.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/285/e7fbaece-83d0-4f61-81f2-8a09a92b48d7.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # $406 Cheap Flights from Islip (ISP) to Nantucket (ACK) [View $406 flight on Thu, Aug 27, 2026](https://expedia.com/Flights-Search?trip=oneway&leg1=from:ISP,to:ACK,departure:8/27/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:405.61&airProductToken=AQpbCikIuZYBEgMyMTAYyHwgwZMBKM2XlgMwq5iWAzhCQABYAWoCRVJyA0JJUAouCMJsEgQxMzUyGMGTASDAUCjqmZYDMJ2algM4WkABWAFqAkFOcghaSTdBVUVZNRIKCAEQARgBKgJCNhgBIgQIARABKAIoAygEMAE) ## Popular airlines from MacArthur Airport (ISP) to Nantucket, MA (ACK-Nantucket Memorial) - ![](https://a.travel-assets.com/air/airlines/9k_sq.svg) Cape Air [](https://www.expedia.com/Flights-Search?leg1=from:ISP,to:ACK,departure:4/3/2026TANYT&leg2=from:ACK,to:ISP,departure:4/10/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"9K"}}]) ## Cheap Flights from Islip to Nantucket (ISP-ACK) Prices were available within the past 7 days and start at $406 for one-way flights and $828 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Cape Air](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/9k.gif) Fri, Jun 19 - Sun, Jun 21 ISP Islip ACK Nantucket $828 Roundtrip found 4 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ISP,to:ACK,departure:6/19/2026TANYT&leg2=from:ACK,to:ISP,departure:6/21/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:827.22&airProductToken=AQpbCikIuZYBEgMyMTAYyHwgwZMBKK2PkAMwi5CQAzhCQABYAWoCRVJyA0JJUAouCMJsEgQxMzUyGMGTASDAUCjKkZADMP2RkAM4V0ABWAFqAkFOcghXSTBBVUVZNRIKCAEQARgBKgJCNhgBIgQIARABKAIoAygEMAE) ![Cape Air](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/9k.gif) Thu, Aug 27 - Mon, Aug 31 ISP Islip ACK Nantucket $833 Roundtrip found 5 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ISP,to:ACK,departure:8/27/2026TANYT&leg2=from:ACK,to:ISP,departure:8/31/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:832.21&airProductToken=AQpbCikIuZYBEgMyMTAYyHwgwZMBKM2XlgMwq5iWAzhCQABYAWoCRVJyA0JJUAouCMJsEgQxMzUyGMGTASDAUCjqmZYDMJ2algM4WkABWAFqAkFOcghaSTdBVUVZNRIKCAEQARgBKgJCNhgBIgQIARABKAIoAygEMAE) ![Cape Air](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/9k.gif) Mon, Aug 17 - Thu, Aug 20 ISP Islip ACK Nantucket $844 Roundtrip found 4 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ISP,to:ACK,departure:8/17/2026TANYT&leg2=from:ACK,to:ISP,departure:8/20/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:843.20&airProductToken=AQpbCikIuZYBEgMyMTAYyHwgwZMBKI2nlQMw66eVAzhTQABYAWoCRVJyA1NJUAouCMJsEgQxMzUyGMGTASDAUCiqqZUDMN2plQM4VUABWAFqAkFOcghVSTJRUkVZNQpbCi4IwmwSBDExNTEYwFAgwZMBKN_MlQMwlM2VAzhVQABYAWoCQU5yCFVJMlFSRVk1CikIuZYBEgMyMTcYwZMBIMh8KPvNlQMw0c6VAzhTQAFYAWoCRVJyA1NJUBIKCAEQARgBKgJCNhgBIgQIARABKAIoAygEMAE) ![Cape Air](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/9k.gif) Fri, Jun 19 - Sun, Jun 21 ISP Islip ACK Nantucket $845 Roundtrip found 4 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ISP,to:ACK,departure:6/19/2026TANYT&leg2=from:ACK,to:ISP,departure:6/21/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:844.51&airProductToken=AQqOAQopCLmWARIDMjEwGMh8IMGTASitj5ADMIuQkAM4QkAAWAFqAkVScgNCSVAKMAjBggESBDE1NTYYwZMBIEMo3ZCQAzDAkZADOFZAAVgBagRNQUlOcghWMEFKWk5OMQovCMGCARIENDU1MxhDIMBQKMKSkAMwq5OQAzhWQAFYAWoETUFJTnIIVjBBSlpOTjEKXgoxCMGCARIENDcwOBjAUCDBkwEom6eQAzDjp5ADOFFAAFgBagRNQUlOcghRVkFKWlNNMwopCLmWARIDMjE3GMGTASDIfCj7qpADMNGrkAM4QkABWAFqAkVScgNCSVASCggBEAEYASoCQUEYASIECAEQASgCKAMoBDAB) ![Cape Air](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/9k.gif) Thu, Aug 27 - Mon, Aug 31 ISP Islip ACK Nantucket $888 Roundtrip found 5 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ISP,to:ACK,departure:8/27/2026TANYT&leg2=from:ACK,to:ISP,departure:8/31/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:887.51&airProductToken=AQqOAQopCLmWARIDMjEwGMh8IMGTASjNl5YDMKuYlgM4QkAAWAFqAkVScgNCSVAKMAjBggESBDExNjQYwZMBIEMot5mWAzCbmpYDOEdAAVgBagRNQUlOcghHMERKWk5NMwovCMGCARIENDY0ORhDIMBQKJKblgMw8puWAzhHQAFYAWoETUFJTnIIRzBESlpOTTMKXgoxCMGCARIENDQ3ORjAUCDBkwEohcaWAzC-xpYDOFFAAFgBagRNQUlOcghRVkFKWlNNMwopCLmWARIDMjE3GMGTASDIfCjbyZYDMLHKlgM4U0ABWAFqAkVScgNTSVASCggBEAEYASoCQUEYASIECAEQASgCKAMoBDAB) ![Cape Air](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/9k.gif) Tue, Mar 31 - Thu, Apr 9 ISP Islip ACK Nantucket $889 Roundtrip found 13 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ISP,to:ACK,departure:3/31/2026TANYT&leg2=from:ACK,to:ISP,departure:4/9/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:888.01&airProductToken=AQpFCiAIuZYBEgMyMTIYyHwgwZMBKMeMiQMwnI2JAzhCQABYAQohCLmWARIENTMxMRjBkwEgwFAo942JAzCujokDOFRAAVgBCkUKIQi5lgESBDUwNjEYwFAgwZMBKIX0iQMwwfSJAzhWQABYAQogCLmWARIDMjE3GMGTASDIfCie9YkDMPT1iQM4QkABWAESCggBEAEYASoCSFIYASIECAEQASgEMAE) ![Cape Air](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/9k.gif) Fri, Jun 19 - Sun, Jun 21 ISP Islip ACK Nantucket $899 Roundtrip found 4 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ISP,to:ACK,departure:6/19/2026TANYT&leg2=from:ACK,to:ISP,departure:6/21/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:898.51&airProductToken=AQqQAQopCLmWARIDMjEyGMh8IMGTASjHkJADMJyRkAM4QkAAWAFqAkVScgNCSVAKMQjBggESBDQzNzUYwZMBIMsBKL2SkAMwkZOQAzhMQAFYAWoETUFJTnIITDBBSlpOTjEKMAjBggESBDQ1MjUYywEgwFAo55OQAzC9lJADOExAAVgBagRNQUlOcghMMEFKWk5OMQpeCjEIwYIBEgQ0NzA4GMBQIMGTASibp5ADMOOnkAM4UUAAWAFqBE1BSU5yCFFWQUpaU00zCikIuZYBEgMyMTMYwZMBIMh8KJqpkAMw-qmQAzhCQAFYAWoCRVJyA0JJUBIKCAEQARgBKgJBQRgBIgQIARABKAIoAygEMAE) ![Cape Air](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/9k.gif) Thu, Aug 27 - Mon, Aug 31 ISP Islip ACK Nantucket $905 Roundtrip found 5 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ISP,to:ACK,departure:8/27/2026TANYT&leg2=from:ACK,to:ISP,departure:8/31/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:904.51&airProductToken=AQqQAQopCLmWARIDMjEwGMh8IMGTASjNl5YDMKuYlgM4QkAAWAFqAkVScgNCSVAKMQjBggESBDI3ODMYwZMBIO9ZKJWZlgMw9ZmWAzhWQAFYAWoETUFJTnIIVjBBSlpOTjEKMAjBggESBDQ1MTgY71kgwFAooZqWAzD6mpYDOFZAAVgBagRNQUlOcghWMEFKWk5OMQpeCjEIwYIBEgQ0NDc5GMBQIMGTASiFxpYDML7GlgM4UUAAWAFqBE1BSU5yCFFWQUpaU00zCikIuZYBEgMyMTMYwZMBIMh8KPrHlgMw2siWAzhTQAFYAWoCRVJyA1NJUBIKCAEQARgBKgJBQRgBIgQIARABKAIoAygEMAE) ![Cape Air](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/9k.gif) Tue, Mar 31 - Sat, Apr 4 ISP Islip ACK Nantucket $909 Roundtrip found 13 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ISP,to:ACK,departure:3/31/2026TANYT&leg2=from:ACK,to:ISP,departure:4/4/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:908.01&airProductToken=AQpFCiAIuZYBEgMyMTIYyHwgwZMBKMeMiQMwnI2JAzhCQABYAQohCLmWARIENTMxMRjBkwEgwFAo942JAzCujokDOFRAAVgBCkUKIQi5lgESBDUxODEYwFAgwZMBKKK6iQMw3rqJAzhCQABYAQogCLmWARIDMjE3GMGTASDIfCj-vIkDMNS9iQM4QkABWAESCggBEAEYASoCSFIYASIECAEQASgEMAE) ![Cape Air](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/9k.gif) Mon, Mar 30 - Thu, Apr 9 ISP Islip ACK Nantucket $917 Roundtrip found 13 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ISP,to:ACK,departure:3/30/2026TANYT&leg2=from:ACK,to:ISP,departure:4/9/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:916.07&airProductToken=AQpnCiAIuZYBEgMyMTIYyHwgwZMBKKeBiQMw_IGJAzhCQABYAQohCLmWARIENzA3MRjBkwEghwYo04yJAzCGjYkDOExAAVgBCiAIuZYBEgQ3NzMxGIcGIMBQKOmNiQMwho6JAzhCQAFYAQpFCiEIuZYBEgQ1MDYxGMBQIMGTASiF9IkDMMH0iQM4VkAAWAEKIAi5lgESAzIxNxjBkwEgyHwonvWJAzD09YkDOEJAAVgBEgoIARABGAEqAkhSGAEiBAgBEAEoBDAB) ## Alternative airports near Nantucket Prices were available within the past 7 days. Prices and availability are subject to change. [](https://www.expedia.com/Flights-Search?leg1=from:ISP,to:ACK,departure:4/3/2026TANYT&leg2=from:ACK,to:ISP,departure:4/9/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) ACK Nantucket Memorial CheapestClosest 7 min [Flights from $949 ](https://www.expedia.com/Flights-Search?leg1=from:ISP,to:ACK,departure:4/3/2026TANYT&leg2=from:ACK,to:ISP,departure:4/9/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) ## Frequently asked questions ### How much does a flight from Islip, NY (ISP-MacArthur) to Nantucket, MA (ACK-Nantucket Memorial) cost? ### What is the cheapest month to fly from Islip, NY (ISP-MacArthur) to Nantucket, MA (ACK-Nantucket Memorial)? ### Which airlines fly direct from Islip, NY (ISP-MacArthur) to Nantucket, MA (ACK-Nantucket Memorial)? ### How do I find cheap flights from Islip, NY (ISP-MacArthur) to Nantucket, MA (ACK-Nantucket Memorial)? ### What is the best time to fly from Islip, NY (ISP-MacArthur) to Nantucket, MA (ACK-Nantucket Memorial)? ### What is the earliest flight from Islip, NY (ISP-MacArthur) to Nantucket, MA (ACK-Nantucket Memorial)? ### How long does it take to fly from Islip, NY (ISP-MacArthur) to Nantucket, MA (ACK-Nantucket Memorial)? ### Can you fly business or first class from Islip, NY (ISP-MacArthur) to Nantucket, MA (ACK-Nantucket Memorial)? ### How do I earn miles on a Islip, NY (ISP-MacArthur) to Nantucket, MA (ACK-Nantucket Memorial) flight with Expedia? ### What airports do you fly into for Nantucket from MacArthur (ISP)? ### Is it cheaper to buy a plane ticket from Islip, NY (ISP-MacArthur) to Nantucket, MA (ACK-Nantucket Memorial) at the last minute? ### Is it cheaper to book a Islip, NY (ISP-MacArthur) to Nantucket, MA (ACK-Nantucket Memorial) flight and hotel package? ### Can I cancel or change the date of my flight from Islip, NY (ISP-MacArthur) to Nantucket, MA (ACK-Nantucket Memorial)? ## Travel information | Origin airport | MacArthur | | ------------------- | ------------------ | | Destination airport | Nantucket Memorial | | Airlines serving | Cape Air | | Roundtrip price | $827 | | Distance | 161 mi | ## Book with confidence # Islip to Nantucket Flights The cheapest times to fly from Islip to Nantucket On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Islip to Nantucket are during the month of June. You can find some of the cheapest flights from Islip to Nantucket with Expedia's search tool and vast selection of airlines. The best time to book a flight from Islip to Nantucket Sunday is one of the best days to book for cheap flights from Islip to Nantucket: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance. How to find cheap round-trip tickets from Islip to Nantucket Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Islip to Nantucket in 2026\. You can also book with separate airlines for your outbound and return journeys, from $406 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference\*. This is available for a small fee, and is free to One Key Gold and Platinum tier members. Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Islip to Nantucket flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps. You could also save big by booking one of Expedia's [vacation packages](https://www.expedia.com/package-deals). Bundling together your Islip to Nantucket airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures. \*Terms apply. Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023\. The percentages you see are averages. \*Flight schedules are subject to change. ## Explore a world of travel with Expedia - Lodging - Flights - Packages - Cars - [Nantucket Hotels ](https://www.expedia.com/Nantucket-Hotels.d285.Travel-Guide-Hotels) - [Hotels near Naushop ](https://www.expedia.com/Naushop-Nantucket-Hotels.0-n553248635976471878-0.Travel-Guide-Filter-Hotels) - [Hotels near Nobadeer Beach ](https://www.expedia.com/Nobadeer-Beach-Hotels.0-l6287514-0.Travel-Guide-Filter-Hotels) - [Hotels near Madequecham ](https://www.expedia.com/Madequecham-Nantucket-Hotels.0-n553248635976472647-0.Travel-Guide-Filter-Hotels) - [Hotels near Surfside Beach ](https://www.expedia.com/Surfside-Beach-Hotels.0-l6287523-0.Travel-Guide-Filter-Hotels) - [Raleigh to Nantucket ](https://www.expedia.com/lp/flights/178300/285/raleigh-to-nantucket) - [Nobadeer Beach ](https://www.expedia.com/Nobadeer-Beach-Nantucket.d6287514.Vacation-Attraction) - [Surfside Beach ](https://www.expedia.com/Surfside-Beach-Nantucket.d6287523.Vacation-Attraction) - [Car rentals near Surfside ](https://www.expedia.com/Car-Rentals-In-Surfside.d553248635975749234.Car-Rental-Guide) - [Car rentals near Monomoy ](https://www.expedia.com/Car-Rentals-In-Monomoy.d553248635976384808.Car-Rental-Guide) - [Enterprise Rental Cars in Monomoy ](https://www.expedia.com/Enterprise-Car-Rentals-In-Monomoy.d553248635976384808-c15.Car-Rental-Guide-Suppliers) \*Available to One Key members.