What is the cheapest airline that flies from Greenville to Islip Long Island?

Southwest and Breeze Airways are the most popular carriers operating from Greenville to Islip Long Island

What airlines fly to Islip, New York?

American Airlines, Spirit Airlines and Delta are the top three most popular airlines that fly to Islip, New York from Greenville according to our data. American Airlines is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Islip, New York. Keep in mind that there are 7 different airlines that fly to Islip, New York on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Greenville Airport to Islip Long Island Airport?

Prices for flights from Greenville Airport to Islip Long Island Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Greenville Airport to Islip Long Island Airport?

There is 1 operator available for flights from Greenville Airport to Islip Long Island Airport as of October 2025.

How old do you have to be to fly from Greenville Airport to Islip Long Island Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Greenville Airport to Islip Long Island Airport.

What documentation or ID do you need to fly to Islip Long Island Airport?

The travel and health documents required for your trip to Islip Long Island Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Islip Long Island Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$179 Cheap Flights from Greenville to Islip in 2025/26

Q: What is the typical price of a round-trip flight between Greenville and Islip, New York?

Prices are currently high for flights on this route. Typical prices usually range from $352 to $376. The lowest price recently found on this route was $379.

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Find the cheapest flights from Greenville to New York

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Cheap round-trip flights

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8:03 pm - 8:02 amGSP-ISP

11h 59m1 stop

11:03 am - 9:16 amISP-GSP

22h 13m2 stops

$379Multiple Airlines

Find Deal

Fri, Nov 21 - Sun, Nov 23

8:00 am - 12:50 pmGSP-ISP

4h 50m1 stop

5:50 am - 9:45 amISP-GSP

3h 55m1 stop

$418Southwest

Find Deal

Fri, Nov 21 - Sun, Nov 23

8:10 am - 11:50 amGSP-ISP

3h 40m1 stop

5:30 pm - 9:35 pmISP-GSP

4h 05m1 stop

$427Southwest

Find Deal

Sat, Nov 8 - Sun, Nov 9

8:10 am - 8:40 pmGSP-ISP

12h 30m2 stops

5:30 pm - 9:35 pmISP-GSP

4h 05m1 stop

$438Southwest

Find Deal

Sat, Nov 8 - Sun, Nov 9

8:00 am - 10:35 pmGSP-ISP

14h 35m2 stops

5:50 am - 7:25 pmISP-GSP

13h 35m2 stops

$578Southwest

Find Deal

Fri, Nov 21 - Sun, Nov 23

8:10 am - 8:40 pmGSP-ISP

12h 30m2 stops

7:00 am - 9:35 pmISP-GSP

14h 35m2 stops

$588Southwest

Find Deal

Sat, Nov 8 - Sun, Nov 9

8:46 pm - 5:55 pmGSP-ISP

45h 09m2 stops

10:38 am - 4:37 pmISP-GSP

53h 59m2 stops

$1,003Breeze Airways

Find Deal

Fri, Nov 7 - Tue, Nov 11

9:46 pm - 8:05 pmGSP-ISP

22h 19m2 stops

7:36 pm - 8:15 pmISP-GSP

48h 39m3 stops

$1,110Breeze Airways

Find Deal

Fri, Nov 21 - Sun, Nov 23

6:30 am - 7:45 pmGSP-ISP

13h 15m2 stops

7:30 am - 8:49 pmISP-GSP

13h 19m3 stops

$1,269Multiple Airlines

Find Deal

Sat, Nov 8 - Sun, Nov 9

Southwest flights from Greenville to Islip, New York

Our best Southwest deals on Greenville to Islip, New York flight tickets

Southwest

Nov 21

GSP8:00 amGreenville

4h 50m

1 stop

ISP12:50 pmIslip Long Island

Nov 23

ISP5:50 amIslip Long Island

3h 55m

1 stop

GSP9:45 amGreenville

$418

Find similar

Southwest

Nov 8

GSP8:10 amGreenville

3h 40m

1 stop

ISP11:50 amIslip Long Island

Nov 9

ISP5:30 pmIslip Long Island

4h 05m

1 stop

GSP9:35 pmGreenville

$427

Find similar

Southwest

Nov 8

GSP8:10 amGreenville

12h 30m

2 stops

ISP8:40 pmIslip Long Island

Nov 9

ISP5:30 pmIslip Long Island

4h 05m

1 stop

GSP9:35 pmGreenville

$438

Find similar

Breeze Airways flights from Greenville to Islip, New York

Our best Breeze Airways deals on Greenville to Islip, New York flight tickets

Breeze Airways

Nov 7

GSP8:46 pmGreenville

45h 09m

2 stops

ISP5:55 pmIslip Long Island

Nov 11

ISP10:38 amIslip Long Island

53h 59m

2 stops

GSP4:37 pmGreenville

$1,003

Find similar

Breeze Airways

Nov 21

GSP9:46 pmGreenville

22h 19m

2 stops

ISP8:05 pmIslip Long Island

Nov 23

ISP7:36 pmIslip Long Island

48h 39m

3 stops

GSP8:15 pmGreenville

$1,110

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Greenville to Islip, New York that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

GreenvilleIslip

GSP - ISP

GSPISP

Greenville

Fri 11/21

8:03 pm-8:02 am

1 stop11h 59m

Islip Long Island

Sun 11/23

11:03 am-9:16 am

2 stops22h 13m

$379

GreenvilleIslip

GSP - ISP

GSPISP

Greenville

Fri 11/21

8:00 am-12:50 pm

1 stop4h 50m

Islip Long Island

Sun 11/23

5:50 am-9:45 am

1 stop3h 55m

$418

GreenvilleIslip

GSP - ISP

GSPISP

Greenville

Sat 11/8

8:10 am-11:50 am

1 stop3h 40m

Islip Long Island

Sun 11/9

5:30 pm-9:35 pm

1 stop4h 05m

$427

GreenvilleIslip

GSP - ISP

GSPISP

Greenville

Sat 11/8

8:10 am-8:40 pm

2 stops12h 30m

Islip Long Island

Sun 11/9

5:30 pm-9:35 pm

1 stop4h 05m

$438

GreenvilleIslip

GSP - ISP

GSPISP

Greenville

Fri 11/21

8:00 am-10:35 pm

2 stops14h 35m

Islip Long Island

Sun 11/23

5:50 am-7:25 pm

2 stops13h 35m

$578

GreenvilleIslip

GSP - ISP

GSPISP

Greenville

Sat 11/8

8:10 am-8:40 pm

2 stops12h 30m

Islip Long Island

Sun 11/9

7:00 am-9:35 pm

2 stops14h 35m

$588

GreenvilleIslip

GSP - ISP

GSPISP

Greenville

Fri 11/7

8:46 pm-5:55 pm

2 stops45h 09m

Islip Long Island

Tue 11/11

10:38 am-4:37 pm

2 stops53h 59m

$1,003

GreenvilleIslip

GSP - ISP

GSPISP

Greenville

Fri 11/21

9:46 pm-8:05 pm

2 stops22h 19m

Islip Long Island

Sun 11/23

7:36 pm-8:15 pm

3 stops48h 39m

$1,110

GreenvilleIslip

GSP - ISP

GSPISP

Greenville

Sat 11/8

6:30 am-7:45 pm

2 stops13h 15m

Islip Long Island

Sun 11/9

7:30 am-8:49 pm

3 stops13h 19m

$1,269

GreenvilleIslip

GSP - ISP

GSPISP

Greenville

Thu 11/20

10:33 am-8:02 am

2 stops45h 29m

$179

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first

How to get the cheapest flight ticket from Greenville to Islip, New York

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the typical price of a round-trip flight between Greenville and Islip, New York?

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

The month of April is, on average, the cheapest month to fly to Islip, New York from Greenville, with most prices found around $286. If you aren’t able to travel to Islip, New York during the month of April, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $314.

What is the cheapest day to depart on your flight to Islip, New York?

The cheapest day to depart from Greenville to Islip, New York is on a Wednesday. Travelers who choose to depart for Islip, New York on a Wednesday will often find tickets for as low as $336. The most expensive day to fly to Islip, New York is Thursday, with ticket prices averaging around $366.

What is the cheapest time of day to depart on your flight to Islip, New York?

Flying to Islip, New York from Greenville in the morning is the least expensive time of day to depart. momondo users have found prices as low as $346 when looking at flights departing in the morning. Flights to Islip, New York are more costly in the afternoon, with an average ticket price of $474. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from Greenville to Islip, New York

Are you open to changing your travel dates? Check out the ideal times to fly from Greenville to Islip, New York according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Greenville to Islip, New York (GSP to ISP) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Greenville to Islip, New York

Direct flights	None

There are no direct flights from Greenville to Islip, New York. There are no popular flight routes from Greenville to Islip, New York.

Search flight deals

How far is Greenville to Islip Long Island by plane?
The straight-line distance from Greenville to Islip Long Island is 644.2 mi. A reasonable flight in good conditions will take 3h 40m.
When did momondo last update prices for flights from Greenville Airport to Islip Long Island Airport?
Prices for flights from Greenville Airport to Islip Long Island Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Greenville Airport to Islip Long Island Airport?
There is 1 operator available for flights from Greenville Airport to Islip Long Island Airport as of October 2025.
How old do you have to be to fly from Greenville Airport to Islip Long Island Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Greenville Airport to Islip Long Island Airport.
What documentation or ID do you need to fly to Islip Long Island Airport?
The travel and health documents required for your trip to Islip Long Island Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Islip Long Island Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Greenville to Islip, New York?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Greenville to Islip, New York is Southwest (100% of total bookings).

Best airlines flying from Greenville to Islip, New York

Compare and see reviews for airlines that fly from Greenville to Islip, New York with momondo

Airline	Rating	Free Cancellation	Price
Southwest	PriceFrom $282	Free Cancellation	Rating 8.0 4,236 reviews		Search Southwest flights

Montauk

Riverhead

Sag Harbor

Southampton

Amagansett

Why use momondo?

Why should I use momondo to find a flight deal from Greenville to Islip?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Islip from Greenville.

Can I find flights from Greenville to Islip with flexible booking policies on momondo?

Flights from Greenville to Islip with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Greenville to Islip?

Once you have performed a search for Greenville to Islip flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Greenville to Islip right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Greenville to Islip flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Islip, New York trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Cheap flights from Greenville to New York from $179

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Greenville to New York departing on 11/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Greenville to New York

Cheap round-trip flights

Cheap one-way flights

Southwest flights from Greenville to Islip, New York

Our best Southwest deals on Greenville to Islip, New York flight tickets

Breeze Airways flights from Greenville to Islip, New York

Our best Breeze Airways deals on Greenville to Islip, New York flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Greenville to Islip, New York that are best for you.

See travel insights to New York from

How to get the cheapest flight ticket from Greenville to Islip, New York

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Greenville and Islip, New York?

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

What is the cheapest day to depart on your flight to Islip, New York?

The cheapest day to depart from Greenville to Islip, New York is on a Wednesday. Travelers who choose to depart for Islip, New York on a Wednesday will often find tickets for as low as $336. The most expensive day to fly to Islip, New York is Thursday, with ticket prices averaging around $366.

What is the cheapest time of day to depart on your flight to Islip, New York?

What is the cheapest airline that flies from Greenville to Islip Long Island?

Southwest and Breeze Airways are the most popular carriers operating from Greenville to Islip Long Island

What airlines fly to Islip, New York?

When to book flights from Greenville to Islip, New York

Cheap Greenville to Islip, New York (GSP to ISP) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Greenville to Islip, New York

Direct flights

How far is Greenville to Islip Long Island by plane?

When did momondo last update prices for flights from Greenville Airport to Islip Long Island Airport?

How many operators does momondo search for flights from Greenville Airport to Islip Long Island Airport?

How old do you have to be to fly from Greenville Airport to Islip Long Island Airport?

What documentation or ID do you need to fly to Islip Long Island Airport?

What is the most popular airline from Greenville to Islip, New York?

Best airlines flying from Greenville to Islip, New York

Compare and see reviews for airlines that fly from Greenville to Islip, New York with momondo

Traveling to a place near New York?

Why use momondo?

Why should I use momondo to find a flight deal from Greenville to Islip?

Can I find flights from Greenville to Islip with flexible booking policies on momondo?

How can momondo help me find flights from Greenville to Islip?

I’m not ready to book a flight from Greenville to Islip right now. Can momondo alert me if prices change?

An easier way to manage your Islip, New York trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing New York