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Islip

$55+ 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 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
CHS — ISP
May 19 — May 261
Tue 5/19
Tue 5/26
1 adult, Economy
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Cheap 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 April 19, 2026.

This Mytrip deal was found by Cheapflights users on 4/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/16:10 pm
CHS
-
ISP
Nonstop1h 54m
Breeze Airways
Sun 5/39:01 pm
ISP
-
CHS
1 stop3h 29m
Breeze Airways
Deal found 4/15$116
This CheapOair deal was found by Cheapflights users on 4/15. 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 5/296:06 pm
CHS
-
ISP
Nonstop1h 57m
Breeze Airways
Mon 6/18:43 pm
ISP
-
CHS
Nonstop2h 08m
Breeze Airways
Deal found 4/15$122
This CheapOair deal was found by Cheapflights users on 4/16. 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 5/1311:36 am
CHS
-
ISP
Nonstop1h 57m
Breeze Airways
Tue 5/1911:56 am
ISP
-
CHS
1 stop3h 26m
Breeze Airways
Deal found 4/16$123
This Mytrip deal was found by Cheapflights users on 4/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/304:05 pm
CHS
-
ISP
1 stop3h 15m
Breeze Airways
Mon 5/48:45 pm
ISP
-
CHS
Nonstop2h 12m
Breeze Airways
Deal found 4/15$125
This CheapOair deal was found by Cheapflights users on 4/16. 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 9/257:05 am
CHS
-
ISP
Nonstop1h 54m
Breeze Airways
Mon 9/289:39 am
ISP
-
CHS
Nonstop2h 12m
Breeze Airways
Deal found 4/16$127
This CheapOair deal was found by Cheapflights users on 4/17. 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 5/86:06 pm
CHS
-
ISP
Nonstop1h 57m
Breeze Airways
Sun 5/107:53 pm
ISP
-
CHS
1 stop3h 26m
Breeze Airways
Deal found 4/17$132
This CheapOair deal was found by Cheapflights users on 4/14. 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 5/911:36 am
CHS
-
ISP
Nonstop1h 57m
Breeze Airways
Tue 5/1211:56 am
ISP
-
CHS
1 stop3h 26m
Breeze Airways
Deal found 4/14$134
This CheapOair deal was found by Cheapflights users on 4/19. 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 5/86:06 pm
CHS
-
ISP
Nonstop1h 57m
Breeze Airways
Mon 5/118:43 pm
ISP
-
CHS
Nonstop2h 08m
Breeze Airways
Deal found 4/19$137
This CheapOair deal was found by Cheapflights users on 4/15. 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 5/73:57 pm
CHS
-
ISP
1 stop3h 16m
Breeze Airways
Sun 5/107:53 pm
ISP
-
CHS
1 stop3h 26m
Breeze Airways
Deal found 4/15$140
This CheapOair deal was found by Cheapflights users on 4/15. 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 5/226:06 pm
CHS
-
ISP
Nonstop1h 57m
Breeze Airways
Tue 6/211:56 am
ISP
-
CHS
1 stop3h 26m
Breeze Airways
Deal found 4/15$142
This CheapOair deal was found by Cheapflights users on 4/17. 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 4/304:05 pm
CHS
-
ISP
1 stop3h 15m
Breeze Airways
Sun 5/39:01 pm
ISP
-
CHS
1 stop3h 29m
Breeze Airways
Deal found 4/17$145
This CheapOair deal was found by Cheapflights users on 4/14. 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 5/73:57 pm
CHS
-
ISP
1 stop3h 16m
Breeze Airways
Fri 5/88:43 pm
ISP
-
CHS
Nonstop2h 08m
Breeze Airways
Deal found 4/14$147

Find 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 April 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$116
(Mytrip)

One-way from

$55
(Kiwi.com)

Popular in

January

Cheapest in

August

Average price

$395

Good one-way deal

$179 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 ($66 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a one-way flight from Charleston to Islip Long Island.
Search Deals

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 April 19, 2026.
Use the filters below to find and compare flights from Charleston to Islip that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CharlestonIslip

CHS - ISP

CHSISP

Charleston

Fri 9/25

7:05 am-8:59 am

Nonstop1h 54m

Islip Long Island

Mon 9/28

9:39 am-11:51 am

Nonstop2h 12m

$127

CharlestonIslip

CHS - ISP

CHSISP

Charleston

Fri 9/4

6:06 pm-8:03 pm

Nonstop1h 57m

Islip Long Island

Mon 9/7

8:43 pm-10:51 pm

Nonstop2h 08m

$127

CharlestonIslip

CHS - ISP

CHSISP

Charleston

Fri 5/8

6:06 pm-8:03 pm

Nonstop1h 57m

Islip Long Island

Mon 5/11

8:43 pm-10:51 pm

Nonstop2h 08m

$137

CharlestonIslip

CHS - ISP

CHSISP

Charleston

Thu 5/7

3:57 pm-7:13 pm

1 stop3h 16m

Islip Long Island

Fri 5/8

8:43 pm-10:51 pm

Nonstop2h 08m

$147

CharlestonIslip

CHS - ISP

CHSISP

Charleston

Thu 9/24

3:50 pm-7:05 pm

1 stop3h 15m

Islip Long Island

Mon 9/28

9:39 am-11:51 am

Nonstop2h 12m

$170

CharlestonIslip

CHS - ISP

CHSISP

Charleston

Fri 6/19

6:06 pm-8:03 pm

Nonstop1h 57m

Islip Long Island

Sun 6/21

7:49 pm-11:15 pm

1 stop3h 26m

$181

CharlestonIslip

CHS - ISP

CHSISP

Charleston

Fri 7/3

6:06 pm-8:03 pm

Nonstop1h 57m

Islip Long Island

Sun 7/12

7:49 pm-11:15 pm

1 stop3h 26m

$208
Quickest round-trip

CharlestonIslip

CHS - ISP

CHSISP

Charleston

Mon 5/4

6:11 pm-8:05 pm

Nonstop1h 54m

Islip Long Island

Mon 5/11

8:43 pm-10:51 pm

Nonstop2h 08m

$217

CharlestonIslip

CHS - ISP

CHSISP

Charleston

Tue 5/12

8:00 am-11:16 am

1 stop3h 16m

Islip Long Island

Thu 5/14

7:53 pm-11:19 pm

1 stop3h 26m

$225

CharlestonIslip

CHS - ISP

CHSISP

Charleston

Tue 5/12

8:00 am-11:16 am

1 stop3h 16m

Islip Long Island

Fri 5/15

3:50 pm-5:58 pm

Nonstop2h 08m

$227

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/15

Showing 1-10 of 21 resultsSorted by cheapest first
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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust 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, August is the cheapest month in which you can book a flight from Charleston to Islip, New York (average of $130). Flying from Charleston to Islip, New York in January is currently the most expensive (average of $439). 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 April 19, 2026.

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.

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

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 April 19, 2026.
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
280 reviews

Boarding

8.3

Crew

8.7

Food

6.6

Comfort

8.2

Entertainment

6.6

Overall

8.1

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
8.1
Very good
280 reviews
Breeze Airways
8.1
Very good
280 reviews

Boarding

8.3

Crew

8.7

Food

6.6

Comfort

8.2

Entertainment

6.6

Overall

8.1

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
4,329 reviews
Breeze Airways
8.1
Very good
280 reviews

Boarding

8.3

Crew

8.7

Food

6.6

Comfort

8.2

Entertainment

6.6

Overall

8.1

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 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 $127, Breeze Airways can have you in Islip, New York from Charleston in 1h 54m. 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 61% 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 $300 for a flight from Charleston to Islip, New York. The cheapest flight overall is $173 while the most popular route, (Charleston - Islip Long Island) is currently priced at $122.

  • 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, August is the cheapest month in which you can book a flight from Charleston to Islip, New York (average of $130). Flying from Charleston to Islip, New York in January is currently the most expensive (average of $439). 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

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Alternative routes for Charleston to Islip

See prices for flight routes from nearby airports that may be better suited for you.
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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 April 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
Breeze AirwaysCheapest$88Average$179FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$316Average$522FlexibilityNo cancel feeOn-time63%

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