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.

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

Yes. Flexible dates can save you up to 53% on flights from Islip to Greenville. 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 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 $412 to $1,618. 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 $281, which is 11% 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 averaging $67 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 $378 to $796, with an average of $506 over the past 12 months. Anything below $378 counts as a good deal.

How much is a round-trip flight from Islip to Greenville?

Round-trip flights from Islip to Greenville typically range from $378 to $796. The lowest price found in the past 5 days was $412, on Southwest.

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

Southwest ($412) and Breeze Airways ($766) are the cheapest airlines to fly round-trip from Islip to Greenville according to KAYAK data over the last 5 days.

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 $580. 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 2h 53m over the past 3 months.

$239 CHEAP FLIGHTS from Islip to Greenville (ISP - GSP)

Save 25% 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

$412

Typical prices: $378-$796

Southwest

Sun 12/9Mon 12/10

ISP - GSP • 1 stop

Cheapest one-way

$239

Typical prices: $253-$253

Southwest

Sat 12/1

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

March

Cheapest • 26% price drop

April

Most popular

Good to know

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

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, Dec 9 - Thu, Dec 10

4:05 pm - 7:55 pmISP Islip Long Island-GSP Greenville

3h 50m1 stop Baltimore/Washington

8:05 am - 11:45 amGSP Greenville-ISP Islip Long Island

3h 40m1 stop Baltimore/Washington

$412Southwest

Wed, Dec 9 - Thu, Dec 10

6:05 am - 10:45 amISP Islip Long Island-GSP Greenville

4h 40m1 stop Baltimore/Washington

7:05 am - 3:30 pmGSP Greenville-ISP Islip Long Island

8h 25m2 stops Nashville Intl Orlando

$417Southwest

Wed, Dec 9 - Thu, Dec 10

12:30 pm - 8:50 pmISP Islip Long Island-GSP Greenville

8h 20m2 stops Baltimore/Washington Nashville Intl

7:05 am - 3:30 pmGSP Greenville-ISP Islip Long Island

8h 25m2 stops Nashville Intl Orlando

$422Southwest

Fri, Jan 1 - Fri, Jan 8

4:05 pm - 7:55 pmISP Islip Long Island-GSP Greenville

3h 50m1 stop Baltimore/Washington

8:25 am - 11:50 amGSP Greenville-ISP Islip Long Island

3h 25m1 stop Baltimore/Washington

$422Southwest

Fri, Jan 1 - Fri, Jan 8

6:05 am - 10:45 amISP Islip Long Island-GSP Greenville

4h 40m1 stop Baltimore/Washington

11:10 am - 9:35 pmGSP Greenville-ISP Islip Long Island

10h 25m2 stops Nashville Intl Baltimore/Washington

$427Southwest

Fri, Jan 1 - Fri, Jan 8

6:05 am - 2:10 pmISP Islip Long Island-GSP Greenville

8h 05m2 stops Baltimore/Washington Nashville Intl

11:10 am - 9:35 pmGSP Greenville-ISP Islip Long Island

10h 25m2 stops Nashville Intl Baltimore/Washington

$432Southwest

Fri, Apr 30 - Sun, May 16

4:45 pm - 9:15 pmISP Islip Long Island-GSP Greenville

4h 30m1 stop Baltimore/Washington

7:50 am - 11:40 amGSP Greenville-ISP Islip Long Island

3h 50m1 stop Baltimore/Washington

$447Southwest

Fri, Apr 30 - Sun, May 16

7:55 am - 5:50 pmISP Islip Long Island-GSP Greenville

9h 55m2 stops Baltimore/Washington Nashville Intl

7:50 am - 11:40 amGSP Greenville-ISP Islip Long Island

3h 50m1 stop Baltimore/Washington

$452Southwest

Fri, Jan 1 - Fri, Jan 8

11:13 am - 8:12 pmISP Islip Long Island-GSP Greenville

8h 59m3 stops Myrtle Beach Intl Fort Lauderdale Tampa

3:30 pm - 11:03 amGSP Greenville-ISP Islip Long Island

19h 33m2 stops Fort Lauderdale Myrtle Beach Intl

$766Breeze Airways

Sun, Dec 6 - Sun, Dec 13

5:28 pm - 8:12 pmISP Islip Long Island-GSP Greenville

26h 44m2 stops Wilmington New Hanover County Tampa

10:12 am - 10:33 amGSP Greenville-ISP Islip Long Island

24h 21m3 stops Tampa Fort Lauderdale Myrtle Beach Intl

$814Breeze Airways