$41 Cheap Flights from Islip (ISP) to Charleston (CHS)

View $41 flight on Mon, Sep 29, 2025Opens in a new window

Popular airlines from MacArthur Airport (ISP) to Charleston Intl. Airport (CHS)

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Cheap Flights from Islip to Charleston (ISP-CHS)

Prices were available within the past 7 days and start at $41 for one-way flights and $89 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Breeze Airways
Fri, Aug 29 - Wed, Sep 3
ISP
Islip
CHS
Charleston
$89 Roundtrip, found 17 hours ago
$89
Roundtrip
found 17 hours ago
Select Breeze Airways flight, departing Fri, Aug 29 from Islip to Charleston, returning Wed, Sep 3, priced at $89 found 17 hours ago
Breeze Airways
Fri, Aug 29 - Wed, Sep 3
ISP
Islip
CHS
Charleston
$94 Roundtrip, found 17 hours ago
$94
Roundtrip
found 17 hours ago
Select Breeze Airways flight, departing Fri, Aug 29 from Islip to Charleston, returning Wed, Sep 3, priced at $94 found 17 hours ago
Breeze Airways
Fri, Aug 29 - Fri, Sep 5
ISP
Islip
CHS
Charleston
$97 Roundtrip, found 1 day ago
$97
Roundtrip
found 1 day ago
Select Breeze Airways flight, departing Fri, Aug 29 from Islip to Charleston, returning Fri, Sep 5, priced at $97 found 1 day ago
Breeze Airways
Fri, Aug 29 - Wed, Sep 3
ISP
Islip
CHS
Charleston
$99 Roundtrip, found 17 hours ago
$99
Roundtrip
found 17 hours ago
Select Breeze Airways flight, departing Fri, Aug 29 from Islip to Charleston, returning Wed, Sep 3, priced at $99 found 17 hours ago
Breeze Airways
Tue, Sep 2 - Fri, Sep 5
ISP
Islip
CHS
Charleston
$105 Roundtrip, found 5 days ago
$105
Roundtrip
found 5 days ago
Select Breeze Airways flight, departing Tue, Sep 2 from Islip to Charleston, returning Fri, Sep 5, priced at $105 found 5 days ago
Breeze Airways
Sat, Aug 30 - Thu, Sep 4
ISP
Islip
CHS
Charleston
$106 Roundtrip, found 5 days ago
$106
Roundtrip
found 5 days ago
Select Breeze Airways flight, departing Sat, Aug 30 from Islip to Charleston, returning Thu, Sep 4, priced at $106 found 5 days ago
Breeze Airways
Thu, Sep 4 - Mon, Sep 8
ISP
Islip
CHS
Charleston
$107 Roundtrip, found 4 hours ago
$107
Roundtrip
found 4 hours ago
Select Breeze Airways flight, departing Thu, Sep 4 from Islip to Charleston, returning Mon, Sep 8, priced at $107 found 4 hours ago
Breeze Airways
Fri, Aug 29 - Mon, Sep 1
ISP
Islip
CHS
Charleston
$109 Roundtrip, found 18 hours ago
$109
Roundtrip
found 18 hours ago
Select Breeze Airways flight, departing Fri, Aug 29 from Islip to Charleston, returning Mon, Sep 1, priced at $109 found 18 hours ago
Southwest Airlines
Mon, Sep 8 - Thu, Sep 11
ISP
Islip
CHS
Charleston
$217 Roundtrip, found 1 day ago
$217
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Mon, Sep 8 from Islip to Charleston, returning Thu, Sep 11, priced at $217 found 1 day ago
JetBlue Airways
Tue, Aug 26 - Tue, Sep 9
ISP
Islip
CHS
Charleston
$349 Roundtrip, found 6 hours ago
$349
Roundtrip
found 6 hours ago
Select JetBlue Airways flight, departing Tue, Aug 26 from Islip to Charleston, returning Tue, Sep 9, priced at $349 found 6 hours ago
Flights from Islip (ISP) to Charleston (CHS)
Origin airport
MacArthur
Destination airport
Charleston Intl.
Airlines serving
Breeze Airways, JetBlue Airways, Southwest Airlines
Roundtrip price
$88
Distance
666 mi
Average flight time
2 hours 46 mins

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 2025. You can also book with separate airlines for your outbound and return journeys, from $41 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. 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.

 

Frequently asked questions

How much does a flight from MacArthur Airport (ISP) to Charleston Intl. Airport (CHS) cost?
Grab cheap return fares starting from $82 from MacArthur Airport (ISP) to Charleston Intl. Airport (CHS). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Breeze flight leaving ISP on July 5 2025 and touching down at CHS. The price was last updated on June 17 2025 and has not changed since.
What is the cheapest month to fly from ISP to CHS?
The cheapest flights from ISP to CHS are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from MacArthur Airport (ISP) to Charleston Intl. Airport (CHS)?
You can fly nonstop from MacArthur Airport (ISP) to Charleston Intl. Airport (CHS) on a Breeze Airways flight.
What is the cheapest airline that flies from ISP to CHS?
Right now, the cheapest airline offering one-way flights from ISP to CHS is Breeze. You can book a seat on this route from $48. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from ISP on August 23 2025. Prices were last updated on June 17 2025 and have not changed since.
How many flights per day from MacArthur Airport (ISP) to Charleston Intl. Airport (CHS)?
On average, you can take your pick of 3 direct flights taking off from MacArthur Airport (ISP) to Charleston Intl. Airport (CHS) each week. If you don't find one that works for your schedule, consider a flight that includes a layover. Filter your search results on Expedia to include one stop or more and choose the best alternative.
What are the most popular departure times for flights from MacArthur Airport (ISP) to Charleston Intl. Airport (CHS)?
The 9 AM departures from ISP to CHS see the highest demand. Greater demand means you'll likely pay more for these departures. If you're looking to save, pick a less crowded time to fly.
What day of the week has the most flights from ISP to CHS?
Friday has the most flights from MacArthur Airport (ISP) to Charleston Intl. Airport (CHS). Consider traveling on this day and you'll have a greater chance of finding a departure that fits your plans.
What is the earliest flight from MacArthur Airport (ISP) to Charleston Intl. Airport (CHS)?
MacArthur Airport (ISP)'s first flight to Charleston Intl. Airport (CHS) takes off at approximately 9:50AM UTC-5. With a total travel time of 2h 9m, you'll land at around 11:59AM UTC-5.
How long does it take to fly from MacArthur Airport (ISP) to Charleston Intl. Airport (CHS)?
The average flight duration from ISP to CHS is 2 hours and 9 minutes, covering a total distance of 670 mi.
What airline has the least delays from ISP to CHS?
Breeze Airways has the best performance for on-time direct flights from MacArthur Airport (ISP) to Charleston Intl. Airport (CHS), with an on-time rating of 100%. Use the Expedia App to check your journey status before you head off and get real-time alerts about any trip changes.
What is the best time to fly from MacArthur Airport (ISP) to Charleston Intl. Airport (CHS)?
Opt for a flight from MacArthur Airport (ISP) to Charleston Intl. Airport (CHS) that takes off before 3 PM to reduce the risk of delays and cancellations. Departures after this hour are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Charleston from MacArthur Airport (ISP)?
If you've booked a direct flight from MacArthur Airport (ISP) to Charleston, Charleston Intl. Airport (CHS) is the only airport you can land at.
Is it cheaper to buy a plane ticket from MacArthur Airport (ISP) to Charleston Intl. Airport (CHS) last-minute?
Holding off until just before your departure to book a ticket from ISP to CHS generally means paying more. While you may come across some last-minute deals, there's no guarantee. Be flexible with your travel plans for a better chance of getting a bargain.
Is it cheaper to book an ISP to CHS flight and hotel package?
Booking an ISP to CHS flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Select from our impressive range of stays and then add activities, car rentals and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from MacArthur Airport (ISP) to Charleston Intl. Airport (CHS)?
Typically, it's possible to reschedule or cancel your ISP to CHS flight. However, for bookings made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.