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 $178 on this airline. An additional option worth looking into is Southwest, starting at $217. Frontier is currently priced 47% 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 129% 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 $125. For sooner than that we have options available in the next 3 days from $256.

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 $142 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.

$72+ Flights from Charlotte to Islip, NY

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Charlotte 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 Charlotte to Islip

Round-trip from	$178 (Mytrip)
One-way from	$72 (Priceline)
Popular in	December
Cheapest in	September
Average price	$363

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. 9% potential increase in price ($35 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

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 3, 2025.

Tue 7/227:03 pmCLT - ISP

1 stop24h 49mFrontier

Thu 7/246:00 amISP - CLT

1 stop28h 41mFrontier

Deal found 7/2

$178

Thu 9/116:10 pmCLT - ISP

1 stop4h 45mSouthwest

Mon 9/156:00 amISP - CLT

1 stop3h 50mSouthwest

Deal found 7/1

$217

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 3, 2025.

Tue 7/227:03 pmCLT - ISP

1 stop24h 49mFrontier

Thu 7/246:00 amISP - CLT

1 stop28h 41mFrontier

Deal found 7/2

$178

Thu 9/116:10 pmCLT - ISP

1 stop4h 45mSouthwest

Mon 9/156:00 amISP - CLT

1 stop3h 50mSouthwest

Deal found 7/1

$217

Last-minute flights from Charlotte to Islip
Discover last-minute flight deals from Charlotte to Islip. Data last updated July 3, 2025 and is based on user searches.

Tue 7/85:45 amCLT - ISP

3 stops31h 47mMultiple Airlines

Sat 7/122:19 pmISP - CLT

2 stops18h 07mMultiple Airlines

Deal found 7/1

$921

Wed 7/97:10 amCLT - ISP

1 stop4h 50mSouthwest

Sun 7/136:00 amISP - CLT

1 stop4h 20mSouthwest

Deal found 7/1

$449

Fri 7/112:17 pmCLT - ISP

1 stop5h 25mFrontier

Sun 7/206:00 amISP - CLT

1 stop5h 42mFrontier

Deal found 7/2

$260

Tue 7/227:03 pmCLT - ISP

1 stop24h 49mFrontier

Thu 7/246:00 amISP - CLT

1 stop28h 41mFrontier

Deal found 7/2

$178

Tue 8/127:40 amCLT - ISP

1 stop4h 15mSouthwest

Fri 8/226:00 amISP - CLT

1 stop3h 50mSouthwest

Deal found 7/1

$233

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 3, 2025.

Fri 7/252:17 pmCLT - ISP

1 stop5h 25mFrontier

Deal found 7/1

$72

Fri 9/196:10 pmCLT - ISP

1 stop4h 45mSouthwest

Deal found 7/1

$125

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

CharlotteIslip

CLT - ISP

CLTISP

Charlotte Douglas

Tue 7/22

7:03 pm-7:52 pm

1 stop24h 49m

Islip Long Island

Thu 7/24

6:00 am-10:41 am

1 stop28h 41m

$178

CharlotteIslip

CLT - ISP

CLTISP

Charlotte Douglas

Thu 9/11

6:10 pm-10:55 pm

1 stop4h 45m

Islip Long Island

Mon 9/15

6:00 am-9:50 am

1 stop3h 50m

$217

CharlotteIslip

CLT - ISP

CLTISP

Charlotte Douglas

Fri 7/25

2:17 pm-7:42 pm

1 stop5h 25m

$72

CharlotteIslip

CLT - ISP

CLTISP

Charlotte Douglas

Fri 9/19

6:10 pm-10:55 pm

1 stop4h 45m

$125

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

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

4,270 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Southwest

8.0

Very good

4,270 reviews

Southwest

8.0

Very good

4,270 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Frontier

5.9

Fair

3,284 reviews

Southwest

8.0

Very good

4,270 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

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 $178 on this airline. An additional option worth looking into is Southwest, starting at $217. Frontier is currently priced 47% 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

Southampton

Riverhead

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Charlotte to Islip

Charlotte to John F Kennedy Intl flights

Raleigh to John F Kennedy Intl flights

Raleigh to LaGuardia flights

Raleigh to Newark flights

Charlotte to LaGuardia flights

Charlotte to Newark flights

Raleigh to White Plains flights

Greensboro to LaGuardia flights

Greensboro to Newark flights

Raleigh to Syracuse flights

Greensboro to John F Kennedy Intl flights

Charlotte to Buffalo flights

Knoxville to LaGuardia flights

Asheville to John F Kennedy Intl flights

Norfolk to LaGuardia flights

Charlotte to Albany flights

Asheville to LaGuardia flights

Wilmington to Newark flights

Asheville to Newark flights

Knoxville to John F Kennedy Intl flights

Raleigh to Stewart flights

Myrtle Beach to John F Kennedy Intl flights

Norfolk to Newark flights

Raleigh to Buffalo flights

Norfolk to John F Kennedy Intl flights

Wilmington to John F Kennedy Intl flights

Charlotte to Rochester flights

Charlotte to Syracuse flights

Myrtle Beach to Newark flights

Myrtle Beach to LaGuardia flights

Raleigh to Islip flights

Wilmington to LaGuardia flights

Raleigh to Albany flights

Knoxville to Newark flights

Norfolk to Buffalo flights

Raleigh to Rochester flights

Greensboro to Syracuse flights

Charlotte to White Plains flights

Greensboro to White Plains flights

Myrtle Beach to White Plains flights

Greensboro to Stewart flights

Greensboro to Albany flights

Greensboro to Buffalo flights

Jacksonville to John F Kennedy Intl flights

Myrtle Beach to Stewart flights

Asheville to Albany flights

Raleigh to Ithaca flights

Greensboro to Rochester flights

Charlotte to Binghamton flights

Complete your trip

Islip, New York car rentals

New York John F Kennedy Intl Airport car rentals

Newark Airport car rentals

New York LaGuardia Airport car rentals

Islip Long Island Airport car rentals

New Windsor Stewart Airport car rentals

New York car rentals

Rochester car rentals

Other flights to Islip

Top 2 airlines flying from Charlotte to Islip

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$41	Average$198	FlexibilityNo cancel fee	On-time62%
Southwest	Cheapest$285	Average$359	FlexibilityNo cancel fee	On-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.

$72+ 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 7/25. 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

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Charlotte to Islip

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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 3, 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 3, 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 3, 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 3, 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 Charlotte?

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 Charlotte to Islip

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Charlotte to Islip

100% Free

Book with Flexibility

Travel Smart

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 3, 2025.