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 $341 to $1,204. That means the highest observed fare was about 4x 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 higher than usual. Average one-way flight prices are about $435, which is 71% above 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.

$341 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

$341

Typical prices: $377-$746

Multiple Airlines

Wed 10/3Tue 10/9

ISP - GSP • 2 stops

Cheapest one-way

$375

Typical prices: $253-$253

Breeze Airways

Tue 10/16

ISP - GSP • 2 stops

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

Sat, Oct 3 - Fri, Oct 9

12:00 pm - 8:29 amISP Islip Long Island-GSP Greenville

20h 29m2 stops Raleigh-Durham Orlando

8:32 pm - 5:30 pmGSP Greenville-ISP Islip Long Island

20h 58m1 stop Orlando

$341Multiple Airlines

Sat, Oct 3 - Fri, Oct 9

5:43 pm - 8:29 amISP Islip Long Island-GSP Greenville

14h 46m1 stop Orlando

8:32 pm - 5:30 pmGSP Greenville-ISP Islip Long Island

20h 58m1 stop Orlando

$341Multiple Airlines

Fri, Oct 30 - Fri, Nov 6

3:02 pm - 9:39 amISP Islip Long Island-GSP Greenville

42h 37m2 stops Raleigh-Durham Sarasota Bradenton Intl

8:32 pm - 5:31 pmGSP Greenville-ISP Islip Long Island

20h 59m1 stop Orlando

$369Multiple Airlines

Fri, Oct 30 - Fri, Nov 6

5:40 pm - 9:35 pmISP Islip Long Island-GSP Greenville

3h 55m1 stop Baltimore/Washington

1:00 pm - 5:05 pmGSP Greenville-ISP Islip Long Island

4h 05m1 stop Baltimore/Washington

$373Southwest

Thu, Oct 29 - Sun, Nov 1

5:40 pm - 9:35 pmISP Islip Long Island-GSP Greenville

3h 55m1 stop Baltimore/Washington

8:15 am - 11:45 amGSP Greenville-ISP Islip Long Island

3h 30m1 stop Baltimore/Washington

$385Southwest

Sat, Oct 3 - Sat, Oct 10

3:50 pm - 7:30 pmISP Islip Long Island-GSP Greenville

3h 40m1 stop Baltimore/Washington

6:40 am - 4:10 pmGSP Greenville-ISP Islip Long Island

9h 30m2 stops Nashville Intl Baltimore/Washington

$390Southwest

Sat, Oct 3 - Sat, Oct 10

5:25 am - 5:00 pmISP Islip Long Island-GSP Greenville

11h 35m2 stops Orlando Nashville Intl

6:40 am - 4:10 pmGSP Greenville-ISP Islip Long Island

9h 30m2 stops Nashville Intl Baltimore/Washington

$395Southwest

Thu, Oct 29 - Sun, Nov 1

11:00 am - 10:50 pmISP Islip Long Island-GSP Greenville

11h 50m2 stops Baltimore/Washington Nashville Intl

8:15 am - 11:45 amGSP Greenville-ISP Islip Long Island

3h 30m1 stop Baltimore/Washington

$396Southwest

Sat, Oct 3 - Sat, Oct 10

3:50 pm - 7:30 pmISP Islip Long Island-GSP Greenville

3h 40m1 stop Baltimore/Washington

12:45 pm - 4:10 pmGSP Greenville-ISP Islip Long Island

3h 25m1 stop Baltimore/Washington

$405Southwest

Fri, Oct 30 - Fri, Nov 6

6:55 am - 8:00 pmISP Islip Long Island-GSP Greenville

13h 05m2 stops Orlando Nashville Intl

6:40 am - 5:05 pmGSP Greenville-ISP Islip Long Island

10h 25m2 stops Nashville Intl Baltimore/Washington

$413Southwest

Recent last minute flight deals from Islip to Greenville

Sat, Sep 12 - Mon, Sep 14

12:00 pm - 2:28 pmISP Islip Long Island-GSP Greenville

50h 28m2 stops Raleigh-Durham Fort Lauderdale

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

20h 26m1 stop Orlando

$568Multiple Airlines

Sat, Sep 12 - Mon, Sep 14

5:43 pm - 11:31 amISP Islip Long Island-GSP Greenville

41h 48m2 stops Orlando Cincinnati Cinci./N. Kentucky

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

20h 26m1 stop Orlando

$573Multiple Airlines

Fri, Sep 11 - Mon, Sep 14

11:08 am - 6:30 pmISP Islip Long Island-GSP Greenville

7h 22m2 stops Myrtle Beach Intl Fort Lauderdale

8:32 pm - 12:58 pmGSP Greenville-ISP Islip Long Island

16h 26m2 stops Orlando Wilmington New Hanover County

$879Breeze Airways

Thu, Sep 10 - Mon, Sep 14

5:28 pm - 5:23 pmISP Islip Long Island-GSP Greenville

23h 55m2 stops Wilmington New Hanover County Tampa

8:32 pm - 12:58 pmGSP Greenville-ISP Islip Long Island

16h 26m2 stops Orlando Wilmington New Hanover County

$959Breeze Airways

Fri, Sep 11 - Mon, Sep 14

11:08 am - 6:30 pmISP Islip Long Island-GSP Greenville

7h 22m2 stops Myrtle Beach Intl Fort Lauderdale

12:11 pm - 11:20 amGSP Greenville-ISP Islip Long Island

47h 09m3 stops Fort Lauderdale Tallahassee Raleigh-Durham

$1,004Breeze Airways

Sat, Sep 12 - Mon, Sep 14

6:08 pm - 3:47 pmISP Islip Long Island-GSP Greenville

45h 39m2 stops Myrtle Beach Intl Orlando

8:32 pm - 12:58 pmGSP Greenville-ISP Islip Long Island

16h 26m2 stops Orlando Wilmington New Hanover County

$1,048Breeze Airways

Thu, Sep 10 - Mon, Sep 14

5:28 pm - 5:23 pmISP Islip Long Island-GSP Greenville

23h 55m2 stops Wilmington New Hanover County Tampa

12:11 pm - 11:20 amGSP Greenville-ISP Islip Long Island

47h 09m3 stops Fort Lauderdale Tallahassee Raleigh-Durham

$1,084Breeze Airways

Sat, Sep 12 - Mon, Sep 14

6:08 pm - 3:47 pmISP Islip Long Island-GSP Greenville

45h 39m2 stops Myrtle Beach Intl Orlando

8:32 pm - 11:20 amGSP Greenville-ISP Islip Long Island

38h 48m2 stops Orlando Raleigh-Durham

$1,188Breeze Airways

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?

Southwest ($373) offered the cheapest round-trip ticket from Islip to Greenville in the last 5 days.

Find deals

Low season	August
High season	April
Cheapest flight	$341

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 $341 to $1,204. That means the highest observed fare was about 4x 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 higher than usual. Average one-way flight prices are about $435, which is 71% above 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).

More options for your flight from Islip to Greenville

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ISP - GSP

$341 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

More options for your flight from Islip to Greenville

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

Information on your arrival and departure airports

Cabin class types available on flights from Islip to Greenville

Find direct flights to and from Islip and Greenville

Flights from domestic origins to Greenville

Flights to other popular destinations

Find deals for your return flight