HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Islip

$50+ Cheap flights from Charleston to Islip, NY (CHS - ISP)

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 12/14. Fares are subject to change and may not be available on all flights or dates of travel.
CHS — ISP
Nov 21 — Nov 281
Fri 11/21
Fri 11/28
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Charleston to Islip 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.

Cheap flight deals from Charleston to Islip

Discover tips and strategies to find the most affordable flight options for your journey from Charleston (CHS) to Islip (ISP). 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 October 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$97
(CheapOair)

One-way from

$50
(CheapOair)

Popular in

December

Cheapest in

February

Average price

$141

Good round-trip deal

$118 or less
Provider with most accurate pricing for Charleston-Islip Long Island flight deals.
Search Deals
Provider most trusted by Cheapflights users for Charleston-Islip Long Island flights.
Search Deals
From Charleston to Islip Long Island
Search Deals
One-way flight from Charleston to Islip Long Island
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($54 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Charleston to Islip Long Island.
Search Deals

Find flight deals from Charleston to Islip

Cheapest flights from Charleston to Islip
Explore the most affordable flight options available from Charleston to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 22, 2025.

This CheapOair deal was found by Cheapflights users on 10/20. 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.
Wed 12/105:48 pmCHS - ISP
Nonstop1h 53mBreeze Airways
Thu 12/1110:38 amISP - CHS
1 stop3h 23mBreeze Airways
Deal found 10/20$97
This CheapOair deal was found by Cheapflights users on 10/21. 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 12/56:14 pmCHS - ISP
Nonstop1h 53mBreeze Airways
Mon 12/88:47 pmISP - CHS
Nonstop2h 12mBreeze Airways
Deal found 10/21$102
This CheapOair deal was found by Cheapflights users on 10/20. 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 12/126:14 pmCHS - ISP
Nonstop1h 53mBreeze Airways
Mon 12/158:47 pmISP - CHS
Nonstop2h 12mBreeze Airways
Deal found 10/20$112
This CheapOair deal was found by Cheapflights users on 10/20. 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.
Wed 12/35:48 pmCHS - ISP
Nonstop1h 53mBreeze Airways
Fri 12/58:47 pmISP - CHS
Nonstop2h 12mBreeze Airways
Deal found 10/20$117
This CheapOair deal was found by Cheapflights users on 10/20. 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.
Thu 12/116:45 amCHS - ISP
1 stop3h 13mBreeze Airways
Mon 12/158:47 pmISP - CHS
Nonstop2h 12mBreeze Airways
Deal found 10/20$123
This Kiwi.com deal was found by Cheapflights users on 10/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:45 amCHS - ISP
1 stop3h 13mBreeze Airways
Thu 12/1110:38 amISP - CHS
1 stop3h 23mBreeze Airways
Deal found 10/20$125
This Breeze Airways deal was found by Cheapflights users on 10/20. 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 Breeze Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/133:43 pmCHS - ISP
1 stop3h 13mBreeze Airways
Thu 11/207:36 pmISP - CHS
1 stop3h 23mBreeze Airways
Deal found 10/20$130
This Breeze Airways deal was found by Cheapflights users on 10/21. 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 Breeze Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/133:43 pmCHS - ISP
1 stop3h 13mBreeze Airways
Sun 11/167:36 pmISP - CHS
1 stop3h 23mBreeze Airways
Deal found 10/21$134
This CheapOair deal was found by Cheapflights users on 10/19. 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 12/56:14 pmCHS - ISP
Nonstop1h 53mBreeze Airways
Thu 12/1810:38 amISP - CHS
1 stop3h 23mBreeze Airways
Deal found 10/19$135
This CheapOair deal was found by Cheapflights users on 10/20. 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.
Mon 12/156:14 pmCHS - ISP
Nonstop1h 53mBreeze Airways
Fri 12/198:47 pmISP - CHS
Nonstop2h 12mBreeze Airways
Deal found 10/20$142
This CheapOair deal was found by Cheapflights users on 10/20. 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 12/126:14 pmCHS - ISP
Nonstop1h 53mBreeze Airways
Sun 12/1410:38 amISP - CHS
1 stop3h 23mBreeze Airways
Deal found 10/20$145
This Kiwi.com deal was found by Cheapflights users on 10/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/133:43 pmCHS - ISP
1 stop3h 13mMultiple Airlines
Thu 11/2010:02 amISP - CHS
2 stops31h 16mMultiple Airlines
Deal found 10/20$173

Cheapflights Fare Finder

 
Customize your flight search to find flights from Charleston to Islip 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 October 22, 2025.
Use the filters below to find and compare flights from Charleston to Islip that are best for you.

Fly from

Charleston

Fly to

Islip

Route

Depart

Return

Price

CharlestonIslip

CHS - ISP

CHSISP

Charleston

Wed 12/10

5:48 pm-7:41 pm

Nonstop1h 53m

Islip Long Island

Thu 12/11

10:38 am-2:01 pm

1 stop3h 23m

$97

CharlestonIslip

CHS - ISP

CHSISP

Charleston

Fri 12/12

6:14 pm-8:07 pm

Nonstop1h 53m

Islip Long Island

Mon 12/15

8:47 pm-10:59 pm

Nonstop2h 12m

$112

CharlestonIslip

CHS - ISP

CHSISP

Charleston

Thu 12/11

6:45 am-9:58 am

1 stop3h 13m

Islip Long Island

Mon 12/15

8:47 pm-10:59 pm

Nonstop2h 12m

$123

CharlestonIslip

CHS - ISP

CHSISP

Charleston

Thu 11/13

3:43 pm-6:56 pm

1 stop3h 13m

Islip Long Island

Thu 11/20

7:36 pm-10:59 pm

1 stop3h 23m

$130

CharlestonIslip

CHS - ISP

CHSISP

Charleston

Thu 11/13

3:43 pm-6:56 pm

1 stop3h 13m

Islip Long Island

Sun 11/16

7:36 pm-10:59 pm

1 stop3h 23m

$134

CharlestonIslip

CHS - ISP

CHSISP

Charleston

Fri 12/5

6:14 pm-8:07 pm

Nonstop1h 53m

Islip Long Island

Thu 12/18

10:38 am-2:01 pm

1 stop3h 23m

$135

CharlestonIslip

CHS - ISP

CHSISP

Charleston

Mon 1/5

6:14 pm-8:07 pm

Nonstop1h 53m

Islip Long Island

Thu 1/8

7:26 pm-10:55 pm

1 stop3h 29m

$140

CharlestonIslip

CHS - ISP

CHSISP

Charleston

Mon 12/15

6:14 pm-8:07 pm

Nonstop1h 53m

Islip Long Island

Fri 12/19

8:47 pm-10:59 pm

Nonstop2h 12m

$142

CharlestonIslip

CHS - ISP

CHSISP

Charleston

Thu 11/13

3:43 pm-6:56 pm

1 stop3h 13m

Islip Long Island

Thu 11/20

10:02 am-5:18 pm

2 stops31h 16m

$173

CharlestonIslip

CHS - ISP

CHSISP

Charleston

Thu 11/13

9:02 am-10:37 am

2 stops25h 35m

Islip Long Island

Sun 11/16

7:36 pm-10:59 pm

1 stop3h 23m

$188

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/20

Showing 1-10 of 22 results
1
2
3

Compare providers for flights from Charleston to Islip

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 Charleston to Islip in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice 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 Charleston-Islip, New York flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Charleston-Islip, New York flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Charleston-Islip, New York flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Charleston-Islip, New York 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 Charleston-Islip, New York 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 Charleston to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Charleston 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 Charleston to Islip

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

Currently, April is the cheapest month in which you can book a flight from Charleston to Islip, New York (average of $34). Flying from Charleston to Islip, New York in June is currently the most expensive (average of $75). 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 CHS to ISP?

Find hourly flight availability from Charleston to Islip. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 22, 2025.

When flying from Charleston to Islip, New York, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Islip

Get insights into the airlines that provide service to Islip. 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 Islip. Reviews last updated October 22, 2025.
Read reviews from past customers who have flown Breeze Airways and Southwest from Charleston to Islip. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Breeze Airways
8.1
Very good
219 reviews

Overall

8.1

Entertainment

6.6

Comfort

8.1

Crew

8.7

Boarding

8.3

Food

6.7

Reviews

1 / 13
8.0
Excellent

Anonymous,Jul 2025

RIC - BDL

All went smoothly but the announcements from the crew were way to fast--approaching inaudible. Pilot announcements were perfect!
Breeze Airways
8.1
Very good
219 reviews
Breeze Airways
8.1
Very good
219 reviews

Overall

8.1

Entertainment

6.6

Comfort

8.1

Crew

8.7

Boarding

8.3

Food

6.7

Reviews

1 / 13
8.0
Excellent

Anonymous,Jul 2025

RIC - BDL

All went smoothly but the announcements from the crew were way to fast--approaching inaudible. Pilot announcements were perfect!
Southwest
8.0
Very good
4,237 reviews
Breeze Airways
8.1
Very good
219 reviews

Overall

8.1

Entertainment

6.6

Comfort

8.1

Crew

8.7

Boarding

8.3

Food

6.7

Reviews

1 / 13
8.0
Excellent

Anonymous,Jul 2025

RIC - BDL

All went smoothly but the announcements from the crew were way to fast--approaching inaudible. Pilot announcements were perfect!

Related info for your journey

Find useful and relevant information for your journey from Charleston to Islip. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    For as low as $97, Breeze Airways can have you in Islip, New York from Charleston in 1h 53m. Charleston and Islip, New York are separated by a distance of 666 mi. Generally, flights for this route are nonstop.

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

    Cheapflights users have booked flights from Charleston to Islip, New York round-trip from $88. Another airline that can offer you cheap pricing is Southwest. Breeze Airways is currently priced 53% below the average price you’ll pay for this route.

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

    On average you can expect to pay $133 for a flight from Charleston to Islip, New York. The cheapest flight overall is $115 while the most popular route, (Charleston - Islip Long Island) is currently priced at $102.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Charleston to Islip 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 Charleston to Islip, New York?

    Currently, April is the cheapest month in which you can book a flight from Charleston to Islip, New York (average of $34). Flying from Charleston to Islip, New York in June is currently the most expensive (average of $75). 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 Islip?

Book flights to Islip if you plan to visit one of these locations
Riverhead
Southampton

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 Charleston to Islip

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

Top 2 airlines flying from Charleston to Islip

Discover the top 2 airlines that operate flights from Charleston to Islip. 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 October 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
Breeze AirwaysCheapest$88Average$173FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$256Average$406FlexibilityNo 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.