ISP - GSP

$207 Find Cheap Flights from Islip to Greenville - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$396
Typical prices: $378-$796
Southwest
Mon 12/24Mon 12/31
ISP - GSP • 1 stop
Cheapest one-way
$207
Typical prices: $253-$253
Southwest
Mon 11/26
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
Insights
When to travel
March
Cheapest • 29% price drop
April
Most popular
Good to know
+1
Good to know
+1
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We hope you love your trip to Greenville!

Cheap Flights from Islip to Greenville (ISP-GSP)

 

Cheap flights from Islip to Greenville with top airlines, updated regularly. Compare round-trip, one-way, direct and last-minute deals.

Thu, Dec 24 - Thu, Dec 31
Southwest Logo
4:05 pm - 7:50 pmISP  Islip Long Island-GSP Greenville
3h 45m1 stop Baltimore/Washington
Southwest Logo
8:05 am - 4:15 pmGSP  Greenville-ISP Islip Long Island
8h 10m1 stop Baltimore/Washington
$396Southwest
Thu, Nov 12 - Thu, Nov 19
Southwest Logo
12:25 pm - 8:10 pmISP  Islip Long Island-GSP Greenville
7h 45m2 stops Baltimore/Washington Nashville Intl
Southwest Logo
8:05 am - 4:15 pmGSP  Greenville-ISP Islip Long Island
8h 10m1 stop Baltimore/Washington
$434Southwest
Tue, Jan 26 - Mon, Feb 1
Southwest Logo
3:50 pm - 7:40 pmISP  Islip Long Island-GSP Greenville
3h 50m1 stop Baltimore/Washington
Southwest Logo
3:15 pm - 9:30 pmGSP  Greenville-ISP Islip Long Island
6h 15m1 stop Baltimore/Washington
$437Southwest
Thu, Nov 12 - Thu, Nov 19
Southwest Logo
5:40 pm - 9:45 pmISP  Islip Long Island-GSP Greenville
4h 05m1 stop Baltimore/Washington
Southwest Logo
8:05 am - 4:15 pmGSP  Greenville-ISP Islip Long Island
8h 10m1 stop Baltimore/Washington
$438Southwest
Thu, Nov 12 - Thu, Nov 19
Southwest Logo
5:35 am - 10:10 amISP  Islip Long Island-GSP Greenville
4h 35m1 stop Baltimore/Washington
Southwest Logo
8:05 am - 4:15 pmGSP  Greenville-ISP Islip Long Island
8h 10m1 stop Baltimore/Washington
$440Southwest
Tue, Jan 26 - Mon, Feb 1
Southwest Logo
9:40 am - 9:00 pmISP  Islip Long Island-GSP Greenville
11h 20m2 stops Orlando Nashville Intl
Southwest Logo
3:15 pm - 9:30 pmGSP  Greenville-ISP Islip Long Island
6h 15m1 stop Baltimore/Washington
$442Southwest
Thu, Nov 12 - Thu, Nov 19
Southwest Logo
12:25 pm - 8:10 pmISP  Islip Long Island-GSP Greenville
7h 45m2 stops Baltimore/Washington Nashville Intl
Southwest Logo
8:05 am - 4:15 pmGSP  Greenville-ISP Islip Long Island
8h 10m1 stop Baltimore/Washington
$444Southwest
Tue, Jan 26 - Mon, Feb 1
Southwest Logo
5:45 am - 6:15 pmISP  Islip Long Island-GSP Greenville
12h 30m2 stops Baltimore/Washington Nashville Intl
Southwest Logo
11:10 am - 9:30 pmGSP  Greenville-ISP Islip Long Island
10h 20m2 stops Nashville Intl Baltimore/Washington
$447Southwest
Thu, Nov 12 - Sun, Nov 15
Multiple Airlines Logo
10:57 am - 7:59 pmISP  Islip Long Island-GSP Greenville
9h 02m2 stops Raleigh-Durham Orlando
Multiple Airlines Logo
8:04 pm - 11:15 amGSP  Greenville-ISP Islip Long Island
15h 11m1 stop Fort Myers SW Florida Intl
$581Multiple Airlines
Mon, Nov 9 - Mon, Nov 16
Breeze Airways Logo
11:13 am - 8:12 pmISP  Islip Long Island-GSP Greenville
8h 59m3 stops Myrtle Beach Intl Fort Lauderdale Tampa
Breeze Airways Logo
8:32 pm - 12:58 pmGSP  Greenville-ISP Islip Long Island
16h 26m2 stops Orlando Wilmington New Hanover County
$699Breeze Airways

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.

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 $396, on Southwest.

Find deals

Key details for Islip to Greenville flights

Low season

November

Cheapest flight

$207
Beat the crowds with an average 88% drop in travelers.
The most popular month to fly with an average 62% increase in travelers.
One-way 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

Your Islip to Greenville flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • 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 $378 to $796, with an average of $526 over the past 12 months. Anything below $378 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 $396 to $1,427. 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 $419, which is 65% 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

  • 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.

Your guide to booking Islip to Greenville flights

Get tips on when to book, when to fly and what to know before your trip.
  • 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 March. Fares historically average $376 round-trip in that month - typically $435 less than the most expensive month, which is September (based on the last 12 months).

More options for your flight from Islip to Greenville

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

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