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

Our cheapest airline available from Charlotte to Islip, New York is Frontier. Our recent data shows that you can find tickets from as low as $176 on this airline. An additional option worth looking into is Southwest, starting at $206. Frontier is currently priced 48% below the average price you’ll pay for this route.

What is the cheapest day to fly from Charlotte to Islip, New York?

Travelers seeking maximum savings on their Charlotte to Islip, New York flight should consider departing on Monday mornings when fares are most often at their lowest. Wednesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Islip, New York ranges from 3.3 - 4.4 inches per month. March is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Islip, New York when rainfall is around 3.3 in.

If weather is an important factor for your trip to Islip, New York, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

What is the cheapest day to fly round-trip from Charlotte to Islip, New York?

Tuesday flights are generally found to be more expensive for flights from Charlotte to Islip, New York. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Islip, New York.

How far in advance should I book a flight from Charlotte to Islip, New York?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 16 days in advance, which can save you up to 137% on flights from Charlotte to Islip, New York compared to booking the week you need them. Waiting 16 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $126. For sooner than that we have options available in the next 3 days from $251.

What is the cheapest month to fly from Charlotte to Islip, New York?

Our data shows that January tends to be the cheapest month to fly to Islip, New York from Charlotte. Users have commonly found prices around $144 for the month, but tickets can be as low as $38. Due to multiple factors, prepare for potentially higher prices in December.

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.

$88+ Flights from Charlotte to Islip, NY

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Cheap flight deals from Charlotte to Islip

Round-trip from	$176 (Cheapflightsfares)
One-way from	$88 (Cheapflightsfares)
Popular in	December
Cheapest in	September
Average price	$355

From Charlotte Douglas to Islip Long Island

Search Deals

One-way flight from Charlotte Douglas to Islip Long Island

Search Deals

Highest demand for flights based on searches. 8% potential increase in price ($31 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 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 July 28, 2025.

Fri 8/82:17 pmCLT - ISP

1 stop5h 25mFrontier

Sat 8/92:05 pmISP - CLT

1 stop6h 44mFrontier

Deal found 7/26

$176

Tue 10/76:00 amCLT - ISP

2 stops10h 05mSouthwest

Sat 10/113:10 pmISP - CLT

1 stop4h 30mSouthwest

Deal found 7/25

$206

Best flights from Charlotte to Islip
Discover carefully curated flight deals from Charlotte to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 28, 2025.

Fri 8/82:17 pmCLT - ISP

1 stop5h 25mFrontier

Sat 8/92:05 pmISP - CLT

1 stop6h 44mFrontier

Deal found 7/26

$176

Tue 10/76:00 amCLT - ISP

2 stops10h 05mSouthwest

Sat 10/113:10 pmISP - CLT

1 stop4h 30mSouthwest

Deal found 7/25

$206

Thu 7/316:00 amCLT - ISP

2 stops17h 47mMultiple Airlines

Tue 9/26:05 amISP - CLT

1 stop15h 54mMultiple Airlines

Deal found 7/28

$440

Last-minute flights from Charlotte to Islip
Discover last-minute flight deals from Charlotte to Islip. Data last updated July 28, 2025 and is based on user searches.

Thu 7/316:00 amCLT - ISP

2 stops17h 47mMultiple Airlines

Tue 9/26:05 amISP - CLT

1 stop15h 54mMultiple Airlines

Deal found 7/28

$440

Sun 8/39:09 pmCLT - ISP

1 stop15h 55mFrontier

Wed 8/64:45 pmISP - CLT

1 stop27h 37mFrontier

Deal found 7/27

$195

Sun 8/35:35 amCLT - ISP

1 stop6h 10mSouthwest

Wed 8/65:30 amISP - CLT

2 stops11h 05mSouthwest

Deal found 7/27

$454

Sun 8/36:54 pmCLT - ISP

2 stops15h 10mMultiple Airlines

Thu 8/147:39 pmISP - CLT

3 stops26h 46mMultiple Airlines

Deal found 7/27

$703

Fri 8/82:17 pmCLT - ISP

1 stop5h 25mFrontier

Sat 8/92:05 pmISP - CLT

1 stop6h 44mFrontier

Deal found 7/26

$176

Sun 8/241:15 pmCLT - ISP

2 stops10h 35mSouthwest

Sun 8/316:25 amISP - CLT

1 stop4h 20mSouthwest

Deal found 7/25

$321

One-way flights from Charlotte to Islip
Search for one-way flight options from Charlotte to Islip. Find affordable one-way fares based on user searches. Data last updated July 28, 2025.

Mon 8/42:16 pmCLT - ISP

1 stop5h 36mFrontier

Deal found 7/27

$88

Wed 8/203:10 pmCLT - ISP

1 stop8h 31mMultiple Airlines

Deal found 7/27

$159

Sat 8/239:30 amCLT - ISP

1 stop5h 25mSouthwest

Deal found 7/26

$168

Fly from

Fly to

Route

Depart

Return

Price

CharlotteIslip

CLT - ISP

CLTISP

Charlotte Douglas

Fri 8/8

2:17 pm-7:42 pm

1 stop5h 25m

Islip Long Island

Sat 8/9

2:05 pm-8:49 pm

1 stop6h 44m

$176

CharlotteIslip

CLT - ISP

CLTISP

Charlotte Douglas

Tue 10/7

6:00 am-4:05 pm

2 stops10h 05m

Islip Long Island

Sat 10/11

3:10 pm-7:40 pm

1 stop4h 30m

$206

CharlotteIslip

CLT - ISP

CLTISP

Charlotte Douglas

Thu 7/31

6:00 am-11:47 pm

2 stops17h 47m

Islip Long Island

Tue 9/2

6:05 am-9:59 pm

1 stop15h 54m

$440

CharlotteIslip

CLT - ISP

CLTISP

Charlotte Douglas

Mon 8/4

2:16 pm-7:52 pm

1 stop5h 36m

$88

CharlotteIslip

CLT - ISP

CLTISP

Charlotte Douglas

Wed 8/20

3:10 pm-11:41 pm

1 stop8h 31m

$159

CharlotteIslip

CLT - ISP

CLTISP

Charlotte Douglas

Sat 8/23

9:30 am-2:55 pm

1 stop5h 25m

$168

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

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, New York?

Currently, January is the cheapest month in which you can book a flight from Charlotte to Islip, New York (average of $108). Flying from Charlotte to Islip, New York 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?

When flying from Charlotte to Islip, New York, 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

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

4,237 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

Southwest

8.0

Very good

4,237 reviews

Southwest

8.0

Very good

4,237 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

Frontier

5.9

Fair

3,238 reviews

Southwest

8.0

Very good

4,237 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

Related info for your journey

What are the cheapest airlines flying from Charlotte to Islip, New York round-trip?
Our cheapest airline available from Charlotte to Islip, New York is Frontier. Our recent data shows that you can find tickets from as low as $176 on this airline. An additional option worth looking into is Southwest, starting at $206. Frontier is currently priced 48% below the average price you’ll pay for this route.
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, New York?
Currently, January is the cheapest month in which you can book a flight from Charlotte to Islip, New York (average of $108). Flying from Charlotte to Islip, New York 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

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Southampton

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Complete your trip

Islip, New York car rentals

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Other flights to Islip

Top 2 airlines flying from Charlotte to Islip

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$47	Average$198	FlexibilityNo cancel fee	On-time62%
Southwest	Cheapest$285	Average$360	FlexibilityNo cancel fee	On-time63%

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$88+ Cheap flights from Charlotte to Islip, NY (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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Charlotte to Islip with Cheapflights

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2. Select your favorite providers

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Cheap flight deals from Charlotte to Islip

Round-trip from

One-way from

Popular in

Cheapest in

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Find flight deals from Charlotte to Islip

Cheapest flights from Charlotte to IslipExplore 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 July 28, 2025.

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 July 28, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Charlotte to Islip that are best for you.

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.

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, New York?

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 July 28, 2025.

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 July 28, 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.

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.

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

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

How can I find direct flights from Charlotte to Islip?

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

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

Traveling to a place near Islip?

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Alternative routes for Charlotte to Islip

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Top 2 airlines flying from Charlotte to Islip

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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 July 28, 2025.