$76+ Cheap flights from Islip, NY to Charleston (ISP - CHS)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — CHS
Oct 4 — Oct 111
Round-trip
1 adult, Economy
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Find cheap flights from Islip to Charleston with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider ’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Islip Long Island to Charleston are usually found in January or June, booked 40 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday
Cheap flight deals from Islip to Charleston
Cheapest
Best
Last-minute
One-way
Cheapest flights from Islip to CharlestonExplore the most affordable flight options available from Islip to Charleston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 4, 2026.
Explore the most affordable flight options available from Islip to Charleston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 4, 2026.
This CheapOair deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/49:39 am -
Nonstop2h 12m
Fri 12/117:05 am -
Nonstop1h 54m
Deal found 9/1![Breeze Airways logo]()
$137
This CheapOair deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/189:39 am -
Nonstop2h 12m
Fri 12/257:05 am -
Nonstop1h 54m
Deal found 8/30![Breeze Airways logo]()
$162
This CheapOair deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/139:39 am -
Nonstop2h 12m
Mon 11/167:05 am -
Nonstop1h 54m
Deal found 8/30![Breeze Airways logo]()
$174
This Priceline deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/269:39 am -
Nonstop2h 12m
Fri 10/307:05 am -
Nonstop1h 54m
Deal found 8/31![Breeze Airways logo]()
$179
This CheapOair deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/199:39 am -
Nonstop2h 12m
Fri 10/237:05 am -
Nonstop1h 54m
Deal found 9/1![Breeze Airways logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/119:39 am -
Nonstop2h 12m
Mon 9/147:05 am -
Nonstop1h 54m
Deal found 9/1![Breeze Airways logo]()
$197
This Breeze Airways deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Breeze Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/59:39 am -
Nonstop2h 12m
Fri 10/97:05 am -
Nonstop1h 54m
Deal found 8/30![Breeze Airways logo]()
$198
This CheapOair deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/199:39 am -
Nonstop2h 12m
Thu 10/223:50 pm -
1 stop3h 15m
Deal found 8/31![Breeze Airways logo]()
$202
Best flights from Islip to CharlestonDiscover carefully curated flight deals from Islip to Charleston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 4, 2026.
Discover carefully curated flight deals from Islip to Charleston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 4, 2026.
This Breeze Airways deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Breeze Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/59:39 am -
Nonstop2h 12m
Fri 10/97:05 am -
Nonstop1h 54m
Deal found 8/30![Breeze Airways logo]()
$198
This Southwest deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:05 am -
2 stops10h 35m
Wed 10/216:40 am -
2 stops9h 05m
Deal found 9/2![Southwest logo]()
$340
This Breeze Airways deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Breeze Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/157:45 pm -
1 stop3h 31m
Thu 10/223:50 pm -
1 stop3h 15m
Deal found 9/2![Breeze Airways logo]()
$224
This Breeze Airways deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Breeze Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/149:39 am -
Nonstop2h 12m
Wed 9/167:00 am -
1 stop11h 28m
Deal found 9/1![Breeze Airways logo]()
$245
This Southwest deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/235:40 pm -
1 stop4h 05m
Mon 10/268:05 pm -
1 stop3h 35m
Deal found 9/1![Southwest logo]()
$374
This Breeze Airways deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Breeze Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/289:39 am -
Nonstop2h 12m
Mon 10/57:05 am -
Nonstop1h 54m
Deal found 8/31![Breeze Airways logo]()
$338
This Southwest deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:15 am -
2 stops6h 25m
Mon 10/198:05 pm -
1 stop3h 35m
Deal found 8/30![Southwest logo]()
$380
This Breeze Airways deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Breeze Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/177:45 pm -
1 stop3h 31m
Mon 9/217:05 am -
Nonstop1h 54m
Deal found 8/30![Breeze Airways logo]()
$363
This Southwest deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:15 am -
2 stops10h 15m
Mon 10/268:05 pm -
1 stop3h 35m
Deal found 8/30![Southwest logo]()
$401
This Southwest deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2910:55 am -
2 stops8h 55m
Sat 10/310:45 am -
2 stops9h 20m
Deal found 9/3![Southwest logo]()
$413
This Southwest deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/193:15 pm -
1 stop4h 10m
Tue 9/228:10 am -
1 stop4h 00m
Deal found 8/31![Southwest logo]()
$426
Last-minute flights from Islip to CharlestonDiscover last-minute flight deals from Islip to Charleston. Data last updated September 4, 2026 and is based on user searches.
Discover last-minute flight deals from Islip to Charleston. Data last updated September 4, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/119:39 am -
Nonstop2h 12m
Mon 9/147:05 am -
Nonstop1h 54m
Deal found 9/1![Breeze Airways logo]()
$197
This Kiwi.com deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/119:39 am -
Nonstop2h 12m
Fri 9/187:05 am -
Nonstop1h 54m
Deal found 8/30![Breeze Airways logo]()
$207
This Kiwi.com deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/145:43 pm -
1 stop14h 55m
Fri 9/187:05 am -
Nonstop1h 54m
Deal found 8/30![Multiple Airlines logo]()
$214
This Kiwi.com deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/291:38 pm -
2 stops19h 00m
Sat 10/37:00 am -
1 stop11h 28m
Deal found 9/3![Breeze Airways logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/295:43 pm -
1 stop14h 55m
Sat 10/37:00 am -
1 stop11h 28m
Deal found 9/3![Multiple Airlines logo]()
$215
This Breeze Airways deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Breeze Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/59:39 am -
Nonstop2h 12m
Fri 10/97:05 am -
Nonstop1h 54m
Deal found 8/30![Breeze Airways logo]()
$198
This CheapOair deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/199:39 am -
Nonstop2h 12m
Fri 10/237:05 am -
Nonstop1h 54m
Deal found 9/1![Breeze Airways logo]()
$189
This CheapOair deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/199:39 am -
Nonstop2h 12m
Thu 10/223:50 pm -
1 stop3h 15m
Deal found 8/31![Breeze Airways logo]()
$202
This CheapOair deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/199:39 am -
Nonstop2h 12m
Mon 10/267:05 am -
Nonstop1h 54m
Deal found 9/1![Breeze Airways logo]()
$205
This Priceline deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/269:39 am -
Nonstop2h 12m
Fri 10/307:05 am -
Nonstop1h 54m
Deal found 8/31![Breeze Airways logo]()
$179
One-way flights from Islip to CharlestonSearch for one-way flight options from Islip to Charleston. Find affordable one-way fares based on user searches. Data last updated September 4, 2026.
Search for one-way flight options from Islip to Charleston. Find affordable one-way fares based on user searches. Data last updated September 4, 2026.
This CheapOair deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/99:39 am -
Nonstop2h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Breeze Airways logo]()
$76
This Kiwi.com deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/17:45 pm -
1 stop3h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Breeze Airways logo]()
$85
This CheapOair deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/189:39 am -
Nonstop2h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Breeze Airways logo]()
$92
This CheapOair deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/177:45 pm -
1 stop3h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Breeze Airways logo]()
$100
This Kiwi.com deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/291:38 pm -
2 stops19h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/30![Breeze Airways logo]()
$105
This Kiwi.com deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/295:43 pm -
1 stop14h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/30![Multiple Airlines logo]()
$108
This CheapOair deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/47:45 pm -
1 stop3h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/30![Breeze Airways logo]()
$109
This CheapOair deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/297:45 pm -
1 stop3h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/31![Breeze Airways logo]()
$112
This Kiwi.com deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates ” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/59:39 am -
Nonstop2h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Breeze Airways logo]()
$113
Find flight deals from Islip to Charleston
Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Charleston (CHS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $98 (Kiwi.com) |
One-way from | $76 (CheapOair) |
Popular in | April |
Cheapest in | January |
Average price | $248 |
Good round-trip deal | $208 or less |
Good one-way deal | $98 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Islip to Charleston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 4, 2026.
Use the filters below to find and compare flights from Islip to Charleston that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
IslipCharleston
ISP Islip Long Island - CHS Charleston
ISPCHS
Islip Long Island
Tue 9/29
1:38 pm-8:38 am
2 stops19h 00m
Charleston
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$105
IslipCharleston
ISP Islip Long Island - CHS Charleston
ISPCHS
Islip Long Island
Wed 9/23
5:43 pm-8:38 am
1 stop14h 55m
Charleston
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$126
IslipCharleston
ISP Islip Long Island - CHS Charleston
ISPCHS
Islip Long Island
Sun 9/20
7:45 pm-11:16 pm
1 stop3h 31m
Charleston
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$132
Quickest round-trip
IslipCharleston
ISP Islip Long Island - CHS Charleston
ISPCHS
Islip Long Island
Mon 10/12
9:39 am-11:51 am
Nonstop2h 12m
Charleston
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$134
IslipCharleston
ISP Islip Long Island - CHS Charleston
ISPCHS
Islip Long Island
Thu 9/24
7:45 pm-11:16 pm
1 stop3h 31m
Charleston
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$135
IslipCharleston
ISP Islip Long Island - CHS Charleston
ISPCHS
Islip Long Island
Wed 9/23
12:00 pm-8:38 am
2 stops20h 38m
Charleston
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$137
IslipCharleston
ISP Islip Long Island - CHS Charleston
ISPCHS
Islip Long Island
Fri 10/16
9:39 am-11:51 am
Nonstop2h 12m
Charleston
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$151
IslipCharleston
ISP Islip Long Island - CHS Charleston
ISPCHS
Islip Long Island
Wed 11/4
12:30 pm-7:30 pm
2 stops7h 00m
Charleston
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$160
IslipCharleston
ISP Islip Long Island - CHS Charleston
ISPCHS
Islip Long Island
Sun 10/11
7:45 pm-11:16 pm
1 stop3h 31m
Charleston
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$162
IslipCharleston
ISP Islip Long Island - CHS Charleston
ISPCHS
Islip Long Island
Mon 10/5
9:39 am-11:51 am
Nonstop2h 12m
Charleston
Fri 10/9
7:05 am-8:59 am
Nonstop1h 54m
$198
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from Islip to Charleston
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Islip to Charleston in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Islip, New York-Charleston flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Islip, New York-Charleston flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Islip, New York-Charleston flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Islip, New York-Charleston flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Islip, New York-Charleston flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Islip to Charleston
Have a flexible travel schedule? Discover the best time to fly to Charleston from Islip with our price prediction graph.
ISP-CHS
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Islip to Charleston
How far ahead should I book a flight from Islip, New York to Charleston?
The best time to book flights from Islip, New York to Charleston is 38 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Islip, New York to Charleston?
Currently, January is the cheapest month in which you can book a flight from Islip, New York to Charleston (average of $190). Flying from Islip, New York to Charleston in April is currently the most expensive (average of $308). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from ISP to CHS?
Find hourly flight availability from Islip to Charleston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 4, 2026.
Unlike in the afternoon, when flights are generally more expensive, you can save up to 50% on flights from Islip, New York to Charleston by exploring options for tickets at noon.
Reviews of airlines servicing Charleston
Get insights into the airlines that provide service to Charleston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Charleston. Reviews last updated September 4, 2026.
Read reviews from past customers who have flown Breeze Airways and Southwest from Islip to Charleston. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
6.7
Comfort
8.2
Boarding
8.4
Overall
8.2
Food
6.7
Crew
8.8
Reviews
1 / 18
4.0
OkayLisa,Mar 2026
ORF - JAX
Entertainment
6.7
Comfort
8.2
Boarding
8.4
Overall
8.2
Food
6.7
Crew
8.8
Reviews
1 / 18
4.0
OkayLisa,Mar 2026
ORF - JAX
Entertainment
6.7
Comfort
8.2
Boarding
8.4
Overall
8.2
Food
6.7
Crew
8.8
Reviews
1 / 18
4.0
OkayLisa,Mar 2026
ORF - JAX
Related info for your journey
Find useful and relevant information for your journey from Islip to Charleston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Charleston?
Book flights to Charleston if you plan to visit one of these locationsNorth Charleston
Santee
Summerville
Walterboro
Mount Pleasant
Goose Creek
Edisto Beach
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Alternative routes for Islip to Charleston
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Other flights to Charleston
Explore flights to Charleston departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 4, 2026.
Complete your trip
Complete your trip to Charleston by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Islip to Charleston by cabin class
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Islip and Charleston flights
Browse other Islip and Charleston flight options. Last updated on September 4, 2026.
Other flights from Islip
Browse through other flights departing from Islip. Flights are based on user searches made on Cheapflights and were last updated on September 4, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Islip to Charleston
Discover the top 2 airlines that operate flights from Islip to Charleston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$115 | Average$229 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$368 | Average$426 | FlexibilityNo cancel fee | On-time63% |