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 $391 to $2,271. That means the highest observed fare was about 6x higher than the lowest one.

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.

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

Round-trip flights from Islip to Greenville typically range from $377 to $746. The lowest price found in the past 5 days was $391, on Southwest.

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

Southwest ($391) offered the cheapest round-trip ticket from Islip to Greenville in 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 $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 2h 54m over the past 3 months.

$391 CHEAP FLIGHTS from Islip to Greenville (ISP - GSP)

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Cheapest round-trip

$391

Typical prices: $377-$746

Southwest

Thu 10/25Sun 10/28

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

Sun, Oct 25 - Wed, Oct 28

5:40 am - 9:45 amISP Islip Long Island-GSP Greenville

4h 05m1 stop Baltimore/Washington

8:30 am - 12:10 pmGSP Greenville-ISP Islip Long Island

3h 40m1 stop Baltimore/Washington

$391Southwest

Fri, Dec 4 - Sun, Dec 6

4:05 pm - 7:50 pmISP Islip Long Island-GSP Greenville

3h 45m1 stop Baltimore/Washington

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

3h 30m1 stop Baltimore/Washington

$393Southwest

Sat, Feb 13 - Thu, Feb 18

9:30 am - 7:35 pmISP Islip Long Island-GSP Greenville

10h 05m1 stop Baltimore/Washington

2:00 pm - 6:15 pmGSP Greenville-ISP Islip Long Island

4h 15m1 stop Baltimore/Washington

$418Southwest

Sat, Feb 13 - Thu, Feb 18

9:30 am - 7:35 pmISP Islip Long Island-GSP Greenville

10h 05m1 stop Baltimore/Washington

11:05 am - 6:15 pmGSP Greenville-ISP Islip Long Island

7h 10m2 stops Nashville Intl Baltimore/Washington

$424Southwest

Sat, Feb 13 - Thu, Feb 18

9:30 am - 9:00 pmISP Islip Long Island-GSP Greenville

11h 30m2 stops Baltimore/Washington Nashville Intl

11:05 am - 6:15 pmGSP Greenville-ISP Islip Long Island

7h 10m2 stops Nashville Intl Baltimore/Washington

$449Southwest

Thu, Oct 22 - Thu, Oct 29

6:25 pm - 3:47 pmISP Islip Long Island-GSP Greenville

21h 22m1 stop Orlando

6:08 pm - 10:33 amGSP Greenville-ISP Islip Long Island

16h 25m2 stops Fort Lauderdale Myrtle Beach Intl

$482Multiple Airlines

Sun, Oct 25 - Wed, Oct 28

5:40 am - 9:45 amISP Islip Long Island-GSP Greenville

4h 05m1 stop Baltimore/Washington

7:00 am - 3:45 pmGSP Greenville-ISP Islip Long Island

8h 45m2 stops Nashville Intl Baltimore/Washington

$482Southwest

Sun, Oct 11 - Thu, Oct 15

5:40 am - 9:45 amISP Islip Long Island-GSP Greenville

4h 05m1 stop Baltimore/Washington

8:25 am - 11:45 amGSP Greenville-ISP Islip Long Island

3h 20m1 stop Baltimore/Washington

$497Southwest

Sat, Oct 10 - Wed, Oct 14

3:50 pm - 7:35 pmISP Islip Long Island-GSP Greenville

3h 45m1 stop Baltimore/Washington

1:25 pm - 8:00 pmGSP Greenville-ISP Islip Long Island

6h 35m1 stop Baltimore/Washington

$497Southwest

Thu, Oct 15 - Sun, Oct 18

10:57 am - 7:59 pmISP Islip Long Island-GSP Greenville

9h 02m2 stops Raleigh-Durham Orlando

4:02 pm - 6:00 pmGSP Greenville-ISP Islip Long Island

25h 58m1 stop Orlando

$619Multiple 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 with more confidence.

Prices

Airlines

Layovers

How much is a round-trip flight from Islip to Greenville? This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Islip to Greenville departing in october.

Find deals

Low season	August
High season	April
Cheapest flight	$391

Round-trip 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.

What cabin classes can I book on flights from Islip to Greenville?
Only Economy Class is available on flights from Islip to Greenville.
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.
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.
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 $391 to $2,271. That means the highest observed fare was about 6x higher than the lowest one.
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
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).
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.

If your dates are flexible, aim for a Monday departure and avoid flying on Friday. On this route, Monday flights average $378, about $418 less than Friday fares (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).

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ISP - GSP

$391 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

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

Which airline is the cheapest 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