Which airports can I use when flying from Islip to Greenville?

Flights from Islip to Greenville usually depart from Islip Long Island (ISP) and arrive at Greenville (GSP).

What cabin classes can I book on flights from Islip to Greenville?

Only Economy Class is available on flights from Islip to Greenville.

Which airports do connecting flights from Islip to Greenville pass through?

Most connecting flights from Islip to Greenville pass through Baltimore/Washington (BWI), which handles 100% of one-stop traffic on this route. Other layover airports each see under 5%.

Can I save money by using flexible dates for flights from Islip to Greenville?

Yes. Being flexible with your travel dates can save you up to 53% on the Islip to Greenville route. Monday is the cheapest departure day at $378 round-trip on average, while Friday is the most expensive at $796, a difference of $418. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

How long is a flight from Islip to Greenville?

A nonstop flight from Islip to Greenville takes 0h 00m, covering 642 miles.

Do I need a passport to fly from Islip to Greenville?

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

Have flight prices from Islip to Greenville changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $300 to $1,891. That means the highest observed fare was about 6x higher than the lowest one.

How are flight prices from Islip to Greenville looking right now?

One-way fares from Islip to Greenville are currently lower than usual. Average one-way flight prices are about $196, which is 23% below the typical average for this route.

What car rental options are available at Greenville Airport (GSP)?

Greenville Airport (GSP) hosts 5 major car rental companies, with daily rates starting from around $30 for economy cars. Top options include: · Budget · Alamo · Thrifty · Enterprise Rent-A-Car · Avis

How much should I expect to pay for a Islip to Greenville flight?

Round-trip flights from Islip to Greenville range from $377 to $746, with an average of $497 over the past 12 months. Anything below $377 counts as a good deal.

What is the cheapest layover airport when flying from Islip to Greenville?

Flights via Baltimore/Washington (BWI) offer the most affordable fares, with an average round-trip price of $560. Based on KAYAK data over the past 3 months.

When flying from Islip to Greenville which airport offers the shortest layover?

Baltimore/Washington (BWI) had the shortest average connection time for Islip to Greenville layovers at 174 minutes over the past 3 months.

$155 CHEAP FLIGHTS from Islip to Greenville (ISP - GSP)

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Cheapest round-trip

$300

Typical prices: $377-$746

Breeze Airways

Sun 9/9Fri 9/14

ISP - GSP • 2 stops

Cheapest one-way

$155

Typical prices: $253-$253

Southwest

Sun 9/30

ISP - GSP • 1 stop

Nonstop flights

Not available

There are currently no direct flights between Islip and Greenville. You'll need to take a connecting flight to reach the destination.

Insights

When to travel

December

Cheapest • 33% price drop

April

Most popular

Good to know

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We hope you love your trip to Greenville!

Flight Deals

Cheap Flights from Islip to Greenville (ISP-GSP)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Islip to Greenville

Wed, Sep 9 - Mon, Sep 14

12:00 pm - 7:49 pmISP Islip Long Island-GSP Greenville

31h 49m2 stops Raleigh-Durham Orlando

8:32 pm - 4:58 pmGSP Greenville-ISP Islip Long Island

20h 26m1 stop Orlando

$300Multiple Airlines

Wed, Jan 13 - Tue, Jan 19

9:40 am - 9:27 amISP Islip Long Island-GSP Greenville

23h 47m1 stop Tampa

1:48 pm - 7:09 pmGSP Greenville-ISP Islip Long Island

29h 21m1 stop Fort Myers SW Florida Intl

$303Breeze Airways

Mon, Jan 11 - Tue, Jan 19

6:00 pm - 1:08 pmISP Islip Long Island-GSP Greenville

19h 08m1 stop Fort Myers SW Florida Intl

1:48 pm - 7:09 pmGSP Greenville-ISP Islip Long Island

29h 21m1 stop Fort Myers SW Florida Intl

$314Breeze Airways

Mon, Jan 11 - Tue, Jan 19

10:34 am - 8:17 pmISP Islip Long Island-GSP Greenville

9h 43m2 stops Charleston Tampa

1:48 pm - 7:09 pmGSP Greenville-ISP Islip Long Island

29h 21m1 stop Fort Myers SW Florida Intl

$317Breeze Airways

Thu, Oct 15 - Thu, Oct 22

3:10 pm - 9:30 pmISP Islip Long Island-GSP Greenville

6h 20m1 stop Baltimore/Washington

8:25 am - 2:30 pmGSP Greenville-ISP Islip Long Island

6h 05m1 stop Baltimore/Washington

$332Southwest

Thu, Oct 15 - Thu, Oct 22

5:40 pm - 9:30 pmISP Islip Long Island-GSP Greenville

3h 50m1 stop Baltimore/Washington

6:25 am - 2:30 pmGSP Greenville-ISP Islip Long Island

8h 05m2 stops Nashville Intl Baltimore/Washington

$337Southwest

Wed, Jan 13 - Thu, Jan 21

9:40 am - 9:27 amISP Islip Long Island-GSP Greenville

23h 47m1 stop Tampa

8:16 pm - 5:20 pmGSP Greenville-ISP Islip Long Island

21h 04m1 stop Fort Myers SW Florida Intl

$342Breeze Airways

Wed, Jan 13 - Thu, Jan 21

9:40 am - 9:27 amISP Islip Long Island-GSP Greenville

23h 47m1 stop Tampa

3:57 pm - 2:22 pmGSP Greenville-ISP Islip Long Island

22h 25m2 stops Pittsburgh Raleigh-Durham

$346Breeze Airways

Wed, Sep 9 - Mon, Sep 14

5:43 pm - 7:49 pmISP Islip Long Island-GSP Greenville

26h 06m1 stop Orlando

8:32 pm - 4:58 pmGSP Greenville-ISP Islip Long Island

20h 26m1 stop Orlando

$349Multiple Airlines

Tue, Sep 15 - Mon, Sep 21

12:00 pm - 7:44 pmISP Islip Long Island-GSP Greenville

31h 44m2 stops Raleigh-Durham Tampa

8:32 pm - 4:58 pmGSP Greenville-ISP Islip Long Island

20h 26m1 stop Orlando

$349Multiple Airlines

Booking Insights

Price, demand and travel trends for Islip to Greenville flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Islip to Greenville with more confidence.

Airlines

Layovers

What is the cheapest airline to fly from Islip to Greenville?

Breeze Airways ($303) and Southwest ($332) are the cheapest airlines to fly round-trip from Islip to Greenville according to KAYAK data over the last 5 days.

Find deals

Low season	August
High season	April
Cheapest flight	$155

Most popular time to fly with an average 2% increase in price.

Flight from Islip to Greenville

When to book flights from Islip to Greenville

Are your dates flexible? Find out the best times to travel from Islip to Greenville based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Which airports can I use when flying from Islip to Greenville?
Flights from Islip to Greenville usually depart from Islip Long Island (ISP) and arrive at Greenville (GSP).
What cabin classes can I book on flights from Islip to Greenville?
Only Economy Class is available on flights from Islip to Greenville.
Which airports do connecting flights from Islip to Greenville pass through?
Most connecting flights from Islip to Greenville pass through Baltimore/Washington (BWI), which handles 100% of one-stop traffic on this route. Other layover airports each see under 5%.
Can I save money by using flexible dates for flights from Islip to Greenville?
Yes. Being flexible with your travel dates can save you up to 53% on the Islip to Greenville route. Monday is the cheapest departure day at $378 round-trip on average, while Friday is the most expensive at $796, a difference of $418. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.
How long is a flight from Islip to Greenville?
A nonstop flight from Islip to Greenville takes 0h 00m, covering 642 miles.
Do I need a passport to fly from Islip to Greenville?
No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.
Have flight prices from Islip to Greenville changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $300 to $1,891. That means the highest observed fare was about 6x higher than the lowest one.
How are flight prices from Islip to Greenville looking right now?
One-way fares from Islip to Greenville are currently lower than usual. Average one-way flight prices are about $196, which is 23% below the typical average for this route.
What car rental options are available at Greenville Airport (GSP)?
Greenville Airport (GSP) hosts 5 major car rental companies, with daily rates starting from around $30 for economy cars. Top options include:
· Budget
· Alamo
· Thrifty
· Enterprise Rent-A-Car
· Avis
How much should I expect to pay for a Islip to Greenville flight?
Round-trip flights from Islip to Greenville range from $377 to $746, with an average of $497 over the past 12 months. Anything below $377 counts as a good deal.

If your dates can be flexible, aim for a Monday departure instead of Friday. On this route, Monday flights average $378 - about $418 less than Friday (53% savings) based on the last 12 months.
If you can choose when to travel, plan your Islip to Greenville trip for December. Fares historically average $334 round-trip in that month - typically $462 less than the most expensive month, which is May (based on the last 12 months).

Everything you need to know for your flight from Islip to Greenville

Airports

Cabin class

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Information on your arrival and departure airports

Islip (ISP)

Greenville (GSP)

ISP - GSP

$155 Find Cheap Flights from Islip to Greenville - Compare and Save

Everything you should know

Cheap Flights from Islip to Greenville (ISP-GSP)

Recent round-trip flight deals from Islip to Greenville

Recent one-way flight deals from Islip to Greenville

Recent last minute flight deals from Islip to Greenville

Price, demand and travel trends for Islip to Greenville flights

What is the cheapest airline to fly from Islip to Greenville?

What is the cheapest layover airport when flying from Islip to Greenville?

When flying from Islip to Greenville which airport offers the shortest layover?

Key details for Islip to Greenville flights

Low season

High season

Cheapest flight

When to book flights from Islip to Greenville

Your Islip to Greenville flight questions, answered

Your guide to booking Islip to Greenville flights

Everything you need to know for your flight from Islip to Greenville

Information on your arrival and departure airports

Cabin class types available on flights from Islip to Greenville

Complete your trip to Greenville with a hotel stay or car rental

Find direct flights to and from Islip and Greenville

Flights to other popular destinations

Flights from domestic origins to Greenville

Choose which airport to fly into in Greenville

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