HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Charleston

$51+ Cheap flights from Islip, NY to Charleston (ISP - CHS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — CHS
Aug 23 — Aug 301
Sun 8/23
Sun 8/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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 August or October, booked 84 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Islip to Charleston

Cheapest flights from Islip to Charleston
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 July 24, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/23. 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 8/318:43 pm
ISP
-
CHS
Nonstop2h 08m
Breeze Airways
Sat 9/511:36 am
CHS
-
ISP
Nonstop1h 57m
Breeze Airways
Deal found 7/23$98
This Kiwi.com deal was found by Cheapflights users on 7/21. 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.
Sat 8/292:33 pm
ISP
-
CHS
Nonstop2h 08m
Breeze Airways
Wed 9/211:36 am
CHS
-
ISP
Nonstop1h 57m
Breeze Airways
Deal found 7/21$112
This CheapOair deal was found by Cheapflights users on 7/22. 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 9/48:43 pm
ISP
-
CHS
Nonstop2h 08m
Breeze Airways
Fri 9/117:05 am
CHS
-
ISP
Nonstop1h 54m
Breeze Airways
Deal found 7/22$122
This CheapOair deal was found by Cheapflights users on 7/21. 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 9/119:39 am
ISP
-
CHS
Nonstop2h 12m
Breeze Airways
Mon 9/147:05 am
CHS
-
ISP
Nonstop1h 54m
Breeze Airways
Deal found 7/21$127
This CheapOair deal was found by Cheapflights users on 7/23. 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 9/219:39 am
ISP
-
CHS
Nonstop2h 12m
Breeze Airways
Fri 9/257:05 am
CHS
-
ISP
Nonstop1h 54m
Breeze Airways
Deal found 7/23$132
This CheapOair deal was found by Cheapflights users on 7/22. 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 9/107:45 pm
ISP
-
CHS
1 stop3h 31m
Breeze Airways
Mon 9/147:05 am
CHS
-
ISP
Nonstop1h 54m
Breeze Airways
Deal found 7/22$137
This CheapOair deal was found by Cheapflights users on 7/22. 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 8/288:43 pm
ISP
-
CHS
Nonstop2h 08m
Breeze Airways
Mon 8/316:06 pm
CHS
-
ISP
Nonstop1h 57m
Breeze Airways
Deal found 7/22$142
This CheapOair deal was found by Cheapflights users on 7/23. 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.
Sat 9/52:33 pm
ISP
-
CHS
Nonstop2h 08m
Breeze Airways
Tue 9/88:00 am
CHS
-
ISP
1 stop3h 16m
Breeze Airways
Deal found 7/23$145
This CheapOair deal was found by Cheapflights users on 7/20. 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 8/218:43 pm
ISP
-
CHS
Nonstop2h 08m
Breeze Airways
Mon 8/246:06 pm
CHS
-
ISP
Nonstop1h 57m
Breeze Airways
Deal found 7/20$147

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 July 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$98
(Kiwi.com)

One-way from

$51
(CheapOair)

Popular in

April

Cheapest in

August

Average price

$253

Good round-trip deal

$183 or less

Good one-way deal

$94 or less
Provider with most accurate pricing for Islip Long Island-Charleston flight deals.
Search Deals
Provider most trusted by Cheapflights users for Islip Long Island-Charleston flights.
Search Deals
From Islip Long Island to Charleston
Search Deals
One-way flight from Islip Long Island to Charleston
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($62 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Islip Long Island to Charleston.
Search Deals
Price to beat on a one-way flight from Islip Long Island to Charleston.
Search Deals

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 2,558,603 searches. Data last updated July 24, 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

Price

Cheapest round-trip
Quickest round-trip

IslipCharleston

ISP - CHS

ISPCHS

Islip Long Island

Fri 8/7

8:43 pm-10:51 pm

Nonstop2h 08m

Charleston

Mon 8/10

6:06 pm-8:03 pm

Nonstop1h 57m

$193

IslipCharleston

ISP - CHS

ISPCHS

Islip Long Island

Sat 8/22

2:33 pm-4:41 pm

Nonstop2h 08m

Charleston

Sat 8/29

11:36 am-1:33 pm

Nonstop1h 57m

$218

IslipCharleston

ISP - CHS

ISPCHS

Islip Long Island

Sat 9/26

3:15 pm-7:20 pm

1 stop4h 05m

Charleston

Tue 9/29

8:10 am-12:10 pm

1 stop4h 00m

$303

IslipCharleston

ISP - CHS

ISPCHS

Islip Long Island

Sat 8/29

11:55 am-6:50 pm

2 stops6h 55m

Charleston

Wed 9/2

6:45 am-4:55 pm

2 stops10h 10m

$351

IslipCharleston

ISP - CHS

ISPCHS

Islip Long Island

Tue 12/1

6:00 am-10:20 am

1 stop4h 20m

Charleston

Fri 12/4

7:30 am-4:20 pm

1 stop8h 50m

$355

IslipCharleston

ISP - CHS

ISPCHS

Islip Long Island

Fri 8/28

12:35 pm-7:10 pm

2 stops6h 35m

Charleston

Mon 8/31

6:05 pm-10:05 pm

1 stop4h 00m

$355

IslipCharleston

ISP - CHS

ISPCHS

Islip Long Island

Thu 9/10

12:35 pm-9:30 pm

2 stops8h 55m

Charleston

Mon 9/14

8:40 am-9:35 pm

2 stops12h 55m

$376

IslipCharleston

ISP - CHS

ISPCHS

Islip Long Island

Wed 8/12

12:55 pm-7:15 pm

1 stop6h 20m

Charleston

Fri 8/14

11:35 am-10:05 pm

2 stops10h 30m

$379

IslipCharleston

ISP - CHS

ISPCHS

Islip Long Island

Thu 10/1

7:45 pm-11:16 pm

1 stop3h 31m

Charleston

Sun 10/4

3:50 pm-7:05 pm

1 stop3h 15m

$406
Cheapest one-way
Quickest one-way

IslipCharleston

ISP - CHS

ISPCHS

Islip Long Island

Sat 8/29

2:33 pm-4:41 pm

Nonstop2h 08m

$66

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/22

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

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 July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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.
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 81 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, August is the cheapest month in which you can book a flight from Islip, New York to Charleston (average of $183). 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 July 24, 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.

How much does it cost to fly round-trip from Islip, New York to Charleston?

Airfare is below average for this route at the moment.

Islip, New York to Charleston flights typically cost between $162 and $288 in August.
The cheapest round-trip price found within the last 5 days was $98 on Breeze Airways (Aug 31-Sep 5).

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 July 24, 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.
Breeze Airways
8.2
Very good
300 reviews

Crew

8.8

Entertainment

6.7

Food

6.7

Overall

8.2

Boarding

8.3

Comfort

8.2

Reviews

1 / 18
4.0
Okay

Lisa,Mar 2026

ORF - JAX

*Flight was delayed twice *Once plane arrived crew closed the entryway to discuss whatever, leaving us to wait again. *Finally arriving Jax, we were delayed again for 20 minutes because another plane at the gate hadn’t pushed back Overall, score 2 out of 5. Lots of passengers upset.
Breeze Airways
8.2
Very good
300 reviews
Breeze Airways
8.2
Very good
300 reviews

Crew

8.8

Entertainment

6.7

Food

6.7

Overall

8.2

Boarding

8.3

Comfort

8.2

Reviews

1 / 18
4.0
Okay

Lisa,Mar 2026

ORF - JAX

*Flight was delayed twice *Once plane arrived crew closed the entryway to discuss whatever, leaving us to wait again. *Finally arriving Jax, we were delayed again for 20 minutes because another plane at the gate hadn’t pushed back Overall, score 2 out of 5. Lots of passengers upset.
Southwest
8.0
Very good
4,234 reviews
Breeze Airways
8.2
Very good
300 reviews

Crew

8.8

Entertainment

6.7

Food

6.7

Overall

8.2

Boarding

8.3

Comfort

8.2

Reviews

1 / 18
4.0
Okay

Lisa,Mar 2026

ORF - JAX

*Flight was delayed twice *Once plane arrived crew closed the entryway to discuss whatever, leaving us to wait again. *Finally arriving Jax, we were delayed again for 20 minutes because another plane at the gate hadn’t pushed back Overall, score 2 out of 5. Lots of passengers upset.

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.

  • How popular is this Islip, New York to Charleston flight route?

    The Islip Long Island to Charleston flight path was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Islip, New York to Charleston?

    Airlines like Breeze Airways and Southwest fly from Islip, New York to Charleston in about 2h 08m. The time it takes to get you to your destination can typically vary by up to 1h 57m. The distance between Islip, New York and Charleston is about 666 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Islip, New York to Charleston round-trip?

    According to our current data, Breeze Airways ($118), and Southwest ($318) offers the cheapest pricing from Islip, New York to Charleston. Breeze Airways is priced at 50% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest flights from Islip, New York to Charleston?

    Looking for the cheapest flight from Islip, New York to Charleston? While on average our users pay $175, our data indicates the cheapest price to be $69. The most popular route (Islip Long Island - Charleston), is priced around $98.

  • Can I find deals for flights from Islip to Charleston that include hotel bookings?

    Yes. In addition to deals on Islip to Charleston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Islip to Charleston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Islip to Charleston.

  • Can I find deals for business class flights from Islip to Charleston?

    Yes. Cheapflights offers flight deals from Islip to Charleston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Islip, New York to Charleston?

    Currently, August is the cheapest month in which you can book a flight from Islip, New York to Charleston (average of $183). 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.

See more FAQs

Traveling to a place near Charleston?

Book flights to Charleston if you plan to visit one of these locations
North Charleston
Santee
Summerville
Walterboro
Isle of Palms
Mount Pleasant
Goose Creek
Edisto Beach

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Islip to Charleston

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Charlotte flights
LaGuardia to Charlotte flights
John F Kennedy Intl to Charlotte flights
Newark to Myrtle Beach flights
Newark to Charleston flights
LaGuardia to Charleston flights
LaGuardia to Myrtle Beach flights
John F Kennedy Intl to Charleston flights
John F Kennedy Intl to Myrtle Beach flights
Newark to Savannah flights
Stewart to Myrtle Beach flights
John F Kennedy Intl to Savannah flights
LaGuardia to Savannah flights
Newark to Columbia flights
Newark to Greenville flights
LaGuardia to Greenville flights
White Plains to Charleston flights
White Plains to Myrtle Beach flights
John F Kennedy Intl to Greenville flights
John F Kennedy Intl to Columbia flights
LaGuardia to Columbia flights
Newark to Hilton Head Island flights
Stewart to Charleston flights
Islip to Myrtle Beach flights
Stewart to Charlotte flights
Albany to Charlotte flights
Rochester to Charlotte flights
LaGuardia to Hilton Head Island flights
Syracuse to Charlotte flights
Buffalo to Charlotte flights
Islip to Charlotte flights
White Plains to Charlotte flights
Buffalo to Savannah flights
Stewart to Greenville flights
Buffalo to Charleston flights
Buffalo to Myrtle Beach flights
John F Kennedy Intl to Augusta flights
Rochester to Myrtle Beach flights
Newark to Augusta flights
Stewart to Savannah flights
Syracuse to Savannah flights
Albany to Myrtle Beach flights
Syracuse to Columbia flights
Albany to Charleston flights
White Plains to Savannah flights
Syracuse to Greenville flights
Albany to Savannah flights
Buffalo to Greenville flights

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 2,558,603 searches. Data last updated July 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
Breeze AirwaysCheapest$118Average$217FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$318Average$446FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights