ISP - GSP

$119 Find Cheap Flights from Islip to Greenville

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Islip to Greenville departing on 8/25. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Greenville

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Islip to Greenville, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Islip to Greenville, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Islip to Greenville (ISP-GSP)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Islip to Greenville that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Islip to Greenville

Fri, Aug 1 - Mon, Aug 4
Southwest Logo
5:45 pm - 10:00 pmISP-GSP
4h 15m1 stop
Southwest Logo
5:45 am - 9:25 amGSP-ISP
3h 40m1 stop
$312Southwest
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Fri, Aug 1 - Mon, Aug 4
Southwest Logo
10:00 am - 7:35 pmISP-GSP
9h 35m2 stops
Southwest Logo
5:45 am - 9:25 amGSP-ISP
3h 40m1 stop
$337Southwest
Find Deal
Sun, Nov 16 - Sat, Nov 22
Southwest Logo
5:50 am - 9:45 amISP-GSP
3h 55m1 stop
Southwest Logo
7:45 am - 11:45 amGSP-ISP
4h 00m1 stop
$338Southwest
Find Deal
Sun, Nov 16 - Sat, Nov 22
Southwest Logo
5:30 pm - 9:35 pmISP-GSP
4h 05m1 stop
Southwest Logo
10:30 am - 8:45 pmGSP-ISP
10h 15m2 stops
$343Southwest
Find Deal
Mon, Jul 21 - Wed, Jul 23
Southwest Logo
5:45 pm - 10:00 pmISP-GSP
4h 15m1 stop
Southwest Logo
7:20 am - 12:00 pmGSP-ISP
4h 40m1 stop
$397Southwest
Find Deal
Mon, Jul 21 - Wed, Jul 23
Southwest Logo
5:05 am - 7:35 pmISP-GSP
14h 30m2 stops
Southwest Logo
7:20 am - 12:00 pmGSP-ISP
4h 40m1 stop
$408Southwest
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Sat, Jul 19 - Thu, Jul 24
Breeze Airways Logo
7:25 pm - 9:54 amISP-GSP
14h 29m1 stop
Breeze Airways Logo
4:33 pm - 10:04 amGSP-ISP
17h 31m2 stops
$650Breeze Airways
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Sat, Jul 19 - Thu, Jul 24
Breeze Airways Logo
2:12 pm - 8:48 amISP-GSP
42h 36m2 stops
Breeze Airways Logo
4:33 pm - 10:04 amGSP-ISP
17h 31m2 stops
$689Breeze Airways
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Sat, Jul 19 - Thu, Jul 24
Breeze Airways Logo
2:12 pm - 8:48 amISP-GSP
42h 36m2 stops
Breeze Airways Logo
10:34 am - 10:04 amGSP-ISP
23h 30m3 stops
$827Breeze Airways
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Mon, Jul 21 - Wed, Jul 23
Logo
10:44 am - 10:23 amISP-GSP
23h 39m3 stops
Logo
9:42 pm - 9:56 amGSP-ISP
36h 14m3 stops
$978
Find Deal
Useful Info

KAYAK's insights & trends for Islip to Greenville flights

Get data-powered insights and trends into flights from Islip to Greenville to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Islip to Greenville?

The average price of all round-trip flights from Islip to Greenville clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Greenville on a Wednesday and more expensive on a Tuesday. On your return trip to Islip, you should consider flying back on a Wednesday, and avoid Thursdays for better deals.

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Good to know

Low seasonApril
High seasonJuly
Cheapest flight$119
Best time to beat the crowds with an average 40% drop in price.
Most popular time to fly with an average 7% 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.

FAQs for booking flights from Islip to Greenville

  • What is the cheapest flight from Islip to Greenville?

    In the last 3 days, the lowest price for a flight from Islip to Greenville was $119 for a one-way ticket and $312 for a round-trip.

  • Do I need a passport to fly between Islip and Greenville?

    No

  • Which airports will I be using when flying from Islip to Greenville?

    When flying out of Islip you will be using Islip Long Island. You will be landing at Greenville, also known as Greenville.

  • Which aircraft models fly most regularly from Islip to Greenville?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Islip to Greenville?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Islip to Greenville.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Islip to Greenville?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Greenville from Islip is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Islip to Greenville?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Greenville with an airline and back to Islip with another airline. Booking your flights between Islip and GSP can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Islip to Greenville?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Greenville from Islip up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Islip to Greenville

 
See real verified KAYAK customer reviews for airlines flying from Islip to Greenville. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Islip to Greenville? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4270 reviews
7.6Entertainment
8.0Comfort
8.6Crew
8.2Boarding
7.0Food
Airline reviews

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

4.0 OkayTraci, Jun 2025OAK - SEA
Read more Southwest reviews

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

For my birthday trip this was my second time ever flying, this trip was the best.

after landing, we stay 2 hours on the taxi way before reaching the gate The airline and the crew were good though

No trays in our seats, we sat in first row, purchased a business class fare. Had to hold our drinks and snack in our hands. No plugs for our cell phones. Had to pay for it a drink cocktail each. Seats so uncomfortable.

Flight wasn’t even full, but too many carry-ons caused us to run out of bin space. New bag fee has folks who would usually check their bags carrying on. Watching Southwest morph into Spirit/Frontier is so sad to watch

Sat on tarmac for 2 hours and then missed my connecting flight

First time traveling on Southwest since bag fees were implemented. Usual good service. Just more expensive now.

Everything was on time. I was disappointed by the front section female, African American flight attendant. I did not see her name tag or would have identified by name not race. As passengers moved to the bathroom early in flight, she would say with a disdainful tone “I have to say the seat belt light is on” then go back to her book. Better trained flight attendants say something like be careful the seat belt light is on.

Cluster mess boarding. Can't wait for SWA reserved seating. Internet didn't seem to work on the plane.

Flights delayed by 4-6 hours. Boarding was a mess and unclear. Bags were not at arrival airport and had never even been put on the plane. No idea when I’ll get them. Don’t fly into Denver!

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

Information on your arrival and departure airports

Islip (ISP)
Greenville (GSP)

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