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Islip

$89+ Cheap flights from Charlotte to Islip (CLT - 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 9/18. Fares are subject to change and may not be available on all flights or dates of travel.
CLT — ISP
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Charlotte to Islip

Discover tips and strategies to find the most affordable flight options for your journey from Charlotte (CLT) 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 September 11, 2025.

Round-trip from

$181
(Kiwi.com)

One-way from

$89
(Booking.com)

Popular in

December

Cheapest in

September

Average price

$283
From Charlotte Douglas to Islip Long Island
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One-way flight from Charlotte Douglas to Islip Long Island
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Highest demand for flights based on searches. 6% potential increase in price ($25 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Charlotte to Islip

Cheapest flights from Charlotte to Islip
Explore the most affordable flight options available from Charlotte to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/9. 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 10/243:45 pmCLT - ISP
1 stop18h 52mFrontier
Mon 10/274:58 pmISP - CLT
1 stop20h 34mFrontier
Deal found 9/9$181
This Frontier deal was found by Cheapflights users on 9/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3011:37 amCLT - ISP
2 stops23h 00mFrontier
Sun 11/29:27 pmISP - CLT
1 stop11h 35mFrontier
Deal found 9/11$194
This Booking.com deal was found by Cheapflights users on 9/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/258:51 pmCLT - ISP
1 stop13h 49mFrontier
Mon 9/295:05 pmISP - CLT
2 stops44h 52mFrontier
Deal found 9/10$203
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 10/68:51 pmCLT - ISP
1 stop23h 51mFrontier
Sun 10/129:47 pmISP - CLT
1 stop10h 13mFrontier
Deal found 9/11$226
This Southwest deal was found by Cheapflights users on 9/11. 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.
Mon 11/176:20 pmCLT - ISP
1 stop3h 45mSouthwest
Thu 11/203:55 pmISP - CLT
1 stop4h 00mSouthwest
Deal found 9/11$236
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 9/261:48 pmCLT - ISP
1 stop21h 07mMultiple Airlines
Sun 9/2811:25 amISP - CLT
1 stop20h 30mMultiple Airlines
Deal found 9/10$242
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 11/109:57 amCLT - ISP
1 stop9h 09mFrontier
Tue 11/186:27 pmISP - CLT
1 stop19h 23mFrontier
Deal found 9/10$257

Cheapflights Fare Finder

 
Customize your flight search to find flights from Charlotte 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 September 11, 2025.
Use the filters below to find and compare flights from Charlotte to Islip that are best for you.

Fly from

Charlotte

Fly to

Islip

Route

Depart

Return

Price

CharlotteIslip

CLT - ISP

CLTISP

Charlotte Douglas

Fri 10/24

3:45 pm-10:37 am

1 stop18h 52m

Islip Long Island

Mon 10/27

4:58 pm-1:32 pm

1 stop20h 34m

$181

CharlotteIslip

CLT - ISP

CLTISP

Charlotte Douglas

Thu 10/30

11:37 am-10:37 am

2 stops23h 00m

Islip Long Island

Sun 11/2

9:27 pm-9:02 am

1 stop11h 35m

$194

CharlotteIslip

CLT - ISP

CLTISP

Charlotte Douglas

Thu 9/25

8:51 pm-10:40 am

1 stop13h 49m

Islip Long Island

Mon 9/29

5:05 pm-1:57 pm

2 stops44h 52m

$203

CharlotteIslip

CLT - ISP

CLTISP

Charlotte Douglas

Mon 11/17

6:20 pm-10:05 pm

1 stop3h 45m

Islip Long Island

Thu 11/20

3:55 pm-7:55 pm

1 stop4h 00m

$236

CharlotteIslip

CLT - ISP

CLTISP

Charlotte Douglas

Fri 9/26

1:48 pm-10:55 am

1 stop21h 07m

Islip Long Island

Sun 9/28

11:25 am-7:55 am

1 stop20h 30m

$242

CharlotteIslip

CLT - ISP

CLTISP

Charlotte Douglas

Tue 10/7

8:48 am-8:42 pm

2 stops11h 54m

Islip Long Island

Sun 10/12

9:47 pm-8:00 am

1 stop10h 13m

$247

CharlotteIslip

CLT - ISP

CLTISP

Charlotte Douglas

Mon 11/10

9:57 am-7:06 pm

1 stop9h 09m

Islip Long Island

Tue 11/18

6:27 pm-1:50 pm

1 stop19h 23m

$257

CharlotteIslip

CLT - ISP

CLTISP

Charlotte Douglas

Thu 10/9

12:05 pm-8:42 pm

1 stop8h 37m

Islip Long Island

Sun 10/12

9:47 pm-8:00 am

1 stop10h 13m

$265

CharlotteIslip

CLT - ISP

CLTISP

Charlotte Douglas

Wed 10/8

7:05 am-12:25 pm

1 stop5h 20m

$94

CharlotteIslip

CLT - ISP

CLTISP

Charlotte Douglas

Wed 10/1

7:40 am-11:55 am

1 stop4h 15m

$112

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 17 results
1
2

Best time to book a flight from Charlotte to Islip

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

What is the cheapest month to book a flight from Charlotte to Islip?

Currently, January is the cheapest month in which you can book a flight from Charlotte to Islip (average of $108). Flying from Charlotte to Islip in November is currently the most expensive (average of $213). 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 CLT to ISP?

Find hourly flight availability from Charlotte 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 September 11, 2025.

When flying from Charlotte to Islip, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 26% versus a flight in the afternoon.

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 September 11, 2025.
Read reviews from past customers who have flown Southwest and Frontier from Charlotte 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.
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,177 reviews
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Charlotte 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 Charlotte to Islip?

    There are many flights that can get you from Charlotte to Islip in 18h 52m. Fly via Frontier to get the fastest option. Charlotte and Islip are separated by a distance of 574 mi.

  • What are the cheapest airlines flying from Charlotte to Islip round-trip?

    Currently priced at $47, Frontier will fly you from Charlotte to Islip and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Southwest for as low as $272. You may be able to fly from Charlotte to Islip for 86% less than the average price by searching for these airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Charlotte 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 Charlotte to Islip?

    Currently, January is the cheapest month in which you can book a flight from Charlotte to Islip (average of $108). Flying from Charlotte to Islip in November is currently the most expensive (average of $213). 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

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Alternative routes for Charlotte to Islip

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Top 2 airlines flying from Charlotte to Islip

Discover the top 2 airlines that operate flights from Charlotte 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$47Average$219FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$272Average$359FlexibilityNo cancel feeOn-time63%

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