Title: $51 Cheap flights from Islip to Charleston (ISP to CHS) - Expedia.com ![](https://images.trvl-media.com/place/179997/171f1f8e-12a1-431f-8ab9-6dc52845a031.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/179997/171f1f8e-12a1-431f-8ab9-6dc52845a031.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # $51 Cheap Flights from Islip (ISP) to Charleston (CHS) [View $51 flight on Mon, Sep 14, 2026](https://expedia.com/Flights-Search?trip=oneway&leg1=from:ISP,to:CHS,departure:9/14/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:50.61&airProductToken=AQotCisIzbABEgMyNTUYyHwg4pEBKKvolwMwq-mXAzhBQABYAWoCTk9yBUFOTzAwEgwIARABGAEqAk1YMgAYASIECAEQASgCKAMoBDAN) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travelers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from MacArthur Airport (ISP) to Charleston Intl. Airport (CHS) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/10/30/landing_airline_sq_logo_MX.svg) Breeze Airways [](https://www.expedia.com/Flights-Search?leg1=from:ISP,to:CHS,departure:3/4/2026TANYT&leg2=from:CHS,to:ISP,departure:3/11/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"MX"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WN.svg) Southwest Airlines [](https://www.expedia.com/Flights-Search?leg1=from:ISP,to:CHS,departure:3/4/2026TANYT&leg2=from:CHS,to:ISP,departure:3/11/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WN"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_B6.svg) JetBlue Airways [](https://www.expedia.com/Flights-Search?leg1=from:ISP,to:CHS,departure:3/4/2026TANYT&leg2=from:CHS,to:ISP,departure:3/11/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"B6"}}]) - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our OneKeyCash [Learn about One Key](https://www.expedia.com/welcome-one-key) ## Cheap Flights from Islip to Charleston (ISP-CHS) Prices were available within the past 7 days and start at $51 for one-way flights and $102 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Breeze Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/MX.gif) Mon, Aug 31 - Wed, Sep 9 ISP Islip CHS Charleston $102 Roundtrip found 2 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ISP,to:CHS,departure:8/31/2026TANYT&leg2=from:CHS,to:ISP,departure:9/9/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:101.22&airProductToken=AQotCisIzbABEgMyNTUYyHwg4pEBKOvKlgMw68uWAzhBQABYAWoCTk9yBUFOTzAwCi0KKwjNsAESAzMyOBjikQEgyHwo6KuXAzDdrJcDOEFAAFgBagJOT3IFQU5PMDASCggBEAEYASoCTVgYASIECAEQASgCKAMoBDAN) ![Breeze Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/MX.gif) Wed, Aug 26 - Wed, Sep 2 ISP Islip CHS Charleston $112 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ISP,to:CHS,departure:8/26/2026TANYT&leg2=from:CHS,to:ISP,departure:9/2/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:111.22&airProductToken=AQotCisIzbABEgMzMjkYyHwg4pEBKNmPlgMw2ZCWAzhCQABYAWoCTk9yBUJOTzAwCi0KKwjNsAESAzMyOBjikQEgyHwoiN2WAzD93ZYDOEJAAFgBagJOT3IFQk5PMDASCggBEAEYASoCTVgYASIECAEQASgCKAMoBDAN) ![Breeze Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/MX.gif) Fri, Sep 11 - Mon, Sep 14 ISP Islip CHS Charleston $118 Roundtrip found 5 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ISP,to:CHS,departure:9/11/2026TANYT&leg2=from:CHS,to:ISP,departure:9/14/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:118.00&airProductToken=AQotCisIzbABEgMyNTUYyHwg4pEBKMvGlwMwy8eXAzhCQABYAWoCTk9yBUJOTzAwEgoIARABGAEqAk1YGAEiBAgBEAEoAigDKAQwDQ) ![Breeze Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/MX.gif) Sat, May 9 - Wed, May 13 ISP Islip CHS Charleston $122 Roundtrip found 11 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ISP,to:CHS,departure:5/9/2026TANYT&leg2=from:CHS,to:ISP,departure:5/13/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:121.22&airProductToken=AQotCisIzbABEgMzMjkYyHwg4pEBKLnFjAMwucaMAzhBQABYAWoCTk9yBUFOTzAwCi0KKwjNsAESAzMyOBjikQEgyHwoiPGMAzD98YwDOEFAAFgBagJOT3IFQU5PMDASCggBEAEYASoCTVgYASIECAEQASgCKAMoBDAN) ![Breeze Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/MX.gif) Mon, May 4 - Fri, May 8 ISP Islip CHS Charleston $127 Roundtrip found 11 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ISP,to:CHS,departure:5/4/2026TANYT&leg2=from:CHS,to:ISP,departure:5/8/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:126.22&airProductToken=AQotCisIzbABEgMyNTUYyHwg4pEBKI2QjAMwkZGMAzhCQABYAWoCTk9yBUJOTzAwCi0KKwjNsAESAzI1NBjikQEgyHwo7ruMAzDjvIwDOEFAAFgBagJOT3IFQU5PMDASCggBEAEYASoCTVgYASIECAEQASgCKAMoBDAN) ![Breeze Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/MX.gif) Mon, May 4 - Fri, May 8 ISP Islip CHS Charleston $132 Roundtrip found 11 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ISP,to:CHS,departure:5/4/2026TANYT&leg2=from:CHS,to:ISP,departure:5/8/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:131.22&airProductToken=AQotCisIzbABEgMyNTUYyHwg4pEBKI2QjAMwkZGMAzhCQABYAWoCTk9yBUJOTzAwEgoIARABGAEqAk1YGAEiBAgBEAEoAigDKAQwDQ) ![Breeze Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/MX.gif) Sun, Mar 15 - Thu, Mar 19 ISP Islip CHS Charleston $136 Roundtrip found 2 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ISP,to:CHS,departure:3/15/2026TANYT&leg2=from:CHS,to:ISP,departure:3/19/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:135.34&airProductToken=AQotCisIzbABEgM0ODIYyHwg4pEBKP7chwMwz96HAzhDQABYAWoCTk9yBUNOTzAwCi0KKwjNsAESAzQ4MxjikQEgyHwok4iIAzDWiYgDOENAAFgBagJOT3IFQ05PMDASCggBEAEYASoCTVgYASIECAEQASgCKAMoBDAN) ![Breeze Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/MX.gif) Mon, May 4 - Fri, May 8 ISP Islip CHS Charleston $137 Roundtrip found 11 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ISP,to:CHS,departure:5/4/2026TANYT&leg2=from:CHS,to:ISP,departure:5/8/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:136.22&airProductToken=AQotCisIzbABEgMyNTUYyHwg4pEBKI2QjAMwkZGMAzhCQABYAWoCRVpyBUJFWjAwCi0KKwjNsAESAzI1NBjikQEgyHwo7ruMAzDjvIwDOEFAAFgBagJFWnIFQUVaMDASCggBEAEYASoCTVgYASIECAEQASgCKAMoBDAN) ![JetBlue Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/b6.gif) Tue, Apr 21 - Tue, Apr 28 ISP Islip CHS Charleston $283 Roundtrip found 15 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ISP,to:CHS,departure:4/21/2026TANYT&leg2=from:CHS,to:ISP,departure:4/28/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:282.40&airProductToken=AQpCCh4IwmwSAzUxMxjIfCDlWiji_YoDMJX_igM4TEAAWAEKIAjCbBIEMTEzMBjlWiDikQEoyoeLAzCxiIsDOExAAVgBCkIKIAjCbBIEMTEzMRjikQEg5VooqMyLAzCKzYsDOExAAFgBCh4IwmwSAzUxNBjlWiDIfCiD1osDMKvXiwM4TEABWAESCggBEAEYASoCQjYYASIECAEQASgEMAE) ![Southwest Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/wn.gif) Sun, May 10 - Fri, May 15 ISP Islip CHS Charleston $377 Roundtrip found 2 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ISP,to:CHS,departure:5/10/2026TANYT&leg2=from:CHS,to:ISP,departure:5/15/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:376.40&airProductToken=AQphCi4I15wBEgQyODc0GMh8IMFFKLbPjAMwhtCMAzhGQABYAWoDV0dBcgdGTEFXVjJFCi8I15wBEgQ0NzE4GMFFIOKRASiF0owDMO7SjAM4RkABWAFqA1dHQXIHRkxBV1YyRQphCi8I15wBEgQxOTI5GOKRASDBRSifh40DMP6HjQM4WkAAWAFqA1dHQXIHWkxBVlAyRQouCNecARIEMjQxMxjBRSDIfCiOi40DMNmLjQM4WkABWAFqA1dHQXIHWkxBVlAyRRIMCAEQARgBKgJXTjIAGAEiBAgBEAEoAigDKAQwAQ) ![](https://forever.travel-assets.com/flex/flexmanager/images/2026/02/06/expedia-sale-2026-desktop-us-ca.jpg?impolicy=fcrop&w=1400&h=600&q=mediumHigh) ## The Annual Vacation Sale Members save up to 40% on hotels and homes. Plan this year’s big trip and save. [Book now](https://expedia.com/deals?rfrr=FTG_SPRING_PROMO_) ## Alternative airports near Charleston 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:CHS,departure:3/4/2026TANYT&leg2=from:CHS,to:ISP,departure:3/16/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) CHS Charleston Intl. CheapestClosest 16 min [Flights from $424 ](https://www.expedia.com/Flights-Search?leg1=from:ISP,to:CHS,departure:3/4/2026TANYT&leg2=from:CHS,to:ISP,departure:3/16/2026TANYT&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 MacArthur Airport (ISP) to Charleston Intl. Airport (CHS) cost? ### What is the cheapest month to fly from MacArthur Airport (ISP) to Charleston Intl. Airport (CHS)? ### Which airlines fly direct from MacArthur Airport (ISP) to Charleston Intl. Airport (CHS)? ### What is the cheapest airline that flies from MacArthur Airport (ISP) to Charleston Intl. Airport (CHS)? ### How many flights per day from MacArthur Airport (ISP) to Charleston Intl. Airport (CHS)? ### What are the most popular departure times for flights from MacArthur Airport (ISP) to Charleston Intl. Airport (CHS)? ### What day of the week has the most flights from ISP to CHS? ### What is the earliest flight from MacArthur Airport (ISP) to Charleston Intl. Airport (CHS)? ### How long does it take to fly from MacArthur Airport (ISP) to Charleston Intl. Airport (CHS)? ### What airline has the least delays from ISP to CHS? ### What is the best time to fly from MacArthur Airport (ISP) to Charleston Intl. Airport (CHS)? ### What airports do you fly into for Charleston from MacArthur Airport (ISP)? ### Is it cheaper to buy a plane ticket from MacArthur Airport (ISP) to Charleston Intl. Airport (CHS) last-minute? ### Is it cheaper to book an ISP to CHS flight and hotel package? ### Can I cancel or change the date of my flight from MacArthur Airport (ISP) to Charleston Intl. Airport (CHS)? ## Travel information | Origin airport | MacArthur | | ------------------- | --------------------------------------------------- | | Destination airport | Charleston Intl. | | Airlines serving | Breeze Airways, JetBlue Airways, Southwest Airlines | | Roundtrip price | $101 | | Distance | 666 mi | | Average flight time | 2 hours 50 mins | ## Book with confidence # Islip to Charleston Flights The cheapest times to fly from Islip to Charleston 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 Charleston are during the month of August. You can find some of the cheapest flights from Islip to Charleston with Expedia's search tool and vast selection of airlines. The best time to book a flight from Islip to Charleston Sunday is one of the best days to book for cheap flights from Islip to Charleston: 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 Charleston 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 Charleston in 2026\. You can also book with separate airlines for your outbound and return journeys, from $51 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 Charleston 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 Charleston 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 - Other - [Charleston Hotels ](https://www.expedia.com/Charleston-Hotels.d179997.Travel-Guide-Hotels) - [Hotels near Charleston Tanger Outlets ](https://www.expedia.com/Charleston-Tanger-Outlets-Hotels.0-l6135759-0.Travel-Guide-Filter-Hotels) - [Hotels near North Charleston Coliseum and Performing Arts Center ](https://www.expedia.com/North-Charleston-Coliseum-And-Performing-Arts-Center-Hotels.0-l6161274-0.Travel-Guide-Filter-Hotels) - [Hotels near North Charleston and American LaFrance Fire Museum ](https://www.expedia.com/North-Charleston-And-American-LaFrance-Fire-Museum-Hotels.0-l6335319-0.Travel-Guide-Filter-Hotels) - [Hotels near Charleston Area Convention Center ](https://www.expedia.com/Charleston-Area-Convention-Center-Hotels.0-l6161267-0.Travel-Guide-Filter-Hotels) - [Wildwood Hotels ](https://www.expedia.com/Wildwood-Hotels.d553248635975850834.Travel-Guide-Hotels) - [Hotels near United States Air Force Charleston Air Force Base ](https://www.expedia.com/United-States-Air-Force-Charleston-Air-Force-Base-Hotels.0-l553248621573139878-0.Travel-Guide-Filter-Hotels) - [North Charleston Hotels ](https://www.expedia.com/North-Charleston-Hotels.d9156.Travel-Guide-Hotels) - [Hotels near Charleston Station ](https://www.expedia.com/Charleston-Station-Hotels.d6194414.Travel-Guide-Hotels) - [Hotels near Drayton Hall ](https://www.expedia.com/Drayton-Hall-Hotels.0-l6082605-0.Travel-Guide-Filter-Hotels) - [Flights to Charleston ](https://www.expedia.com/Cheap-Flights-To-Charleston.d179997.Travel-Guide-Flights) - [Newark to North Charleston ](https://www.expedia.com/lp/flights/601760/9156/newark-to-north-charleston) - [Boston to North Charleston ](https://www.expedia.com/lp/flights/178239/9156/boston-to-north-charleston) - [Chicago to North Charleston ](https://www.expedia.com/lp/flights/178248/9156/chicago-to-north-charleston) - [Charleston Tanger Outlets ](https://www.expedia.com/Charleston-Tanger-Outlets-North-Charleston.d6135759.Vacation-Attraction) - [North Charleston and American LaFrance Fire Museum ](https://www.expedia.com/North-Charleston-And-American-LaFrance-Fire-Museum-North-Charleston.d6335319.Vacation-Attraction) - [North Charleston Coliseum and Performing Arts Center ](https://www.expedia.com/North-Charleston-Coliseum-And-Performing-Arts-Center-North-Charleston.d6161274.Vacation-Attraction) - [Charleston Area Convention Center ](https://www.expedia.com/Charleston-Area-Convention-Center-North-Charleston.d6161267.Vacation-Attraction) - [United States Air Force Charleston Air Force Base ](https://www.expedia.com/United-States-Air-Force-Charleston-Air-Force-Base-North-Charleston.d553248621573139878.Vacation-Attraction) - [Drayton Hall ](https://www.expedia.com/Drayton-Hall-Charleston.d6082605.Vacation-Attraction) - [Car rentals near Charleston Tanger Outlets ](https://www.expedia.com/Car-Rentals-In-Charleston-Tanger-Outlets.d6135759.Car-Rental-Guide) - [Car rentals near North Charleston Coliseum and Performing Arts Center ](https://www.expedia.com/Car-Rentals-In-North-Charleston-Coliseum-And-Performing-Arts-Center.d6161274.Car-Rental-Guide) - [Car rentals near Wildwood ](https://www.expedia.com/Car-Rentals-In-Wildwood.d553248635975850834.Car-Rental-Guide) - [Car rentals near United States Air Force Charleston Air Force Base ](https://www.expedia.com/Car-Rentals-In-United-States-Air-Force-Charleston-Air-Force-Base.d553248621573139878.Car-Rental-Guide) - [Car rentals near North Charleston ](https://www.expedia.com/Car-Rentals-In-North-Charleston.d9156.Car-Rental-Guide) - [Things to do in North Charleston ](https://www.expedia.com/Things-To-Do-In-North-Charleston.d9156.Travel-Guide-Activities) \*Available to One Key members.