ISP - GSP

$302 Find Cheap Flights from Islip to Greenville

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Islip to Greenville departing on 7/4. 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

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 Flight Deals 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.

Recent round-trip flight deals from Islip to Greenville

KAYAK's recommended round-trip deals from the most popular airlines that fly from Islip to Greenville.
Discover the best prices for you by selecting your travel dates on KAYAK.
Southwest Logo
1:10 pm - 7:05 pmISP-GSP
5h 55m1 stop
Southwest Logo
5:45 am - 11:55 amGSP-ISP
6h 10m1 stop
$302Southwest
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Fri, Jul 4 - Mon, Jul 7
Southwest Logo
1:10 pm - 7:05 pmISP-GSP
5h 55m1 stop
Southwest Logo
5:45 am - 10:10 pmGSP-ISP
16h 25m2 stops
$338Southwest
Find Deal
Fri, Jul 4 - Mon, Jul 7
Southwest Logo
5:30 am - 2:45 pmISP-GSP
9h 15m2 stops
Southwest Logo
5:45 am - 10:10 pmGSP-ISP
16h 25m2 stops
$380Southwest
Find Deal
Fri, Jul 4 - Mon, Jul 7
Southwest Logo
5:40 am - 9:35 amISP-GSP
3h 55m1 stop
Southwest Logo
7:10 pm - 11:05 pmGSP-ISP
3h 55m1 stop
$527Southwest
Find Deal
Sat, May 10 - Mon, May 12
Southwest Logo
6:05 am - 5:45 pmISP-GSP
11h 40m2 stops
Southwest Logo
8:10 pm - 12:05 amGSP-ISP
3h 55m1 stop
$532Southwest
Find Deal
Sat, May 10 - Sun, May 11
Breeze Airways Logo
7:25 pm - 9:54 amISP-GSP
14h 29m1 stop
Breeze Airways Logo
9:08 pm - 1:15 pmGSP-ISP
40h 07m3 stops
$751Breeze Airways
Find Deal
Sat, May 10 - Sun, May 11
Breeze Airways Logo
10:36 am - 9:54 amISP-GSP
47h 18m2 stops
Breeze Airways Logo
10:30 am - 1:15 pmGSP-ISP
26h 45m3 stops
$907Breeze Airways
Find Deal
Fri, Jul 4 - Mon, Jul 7
Breeze Airways Logo
12:27 pm - 3:53 pmISP-GSP
27h 26m2 stops
Breeze Airways Logo
9:08 pm - 1:15 pmGSP-ISP
40h 07m3 stops
$942Breeze Airways
Find Deal
Sat, May 10 - Sun, May 11
Breeze Airways Logo
2:25 pm - 8:48 amISP-GSP
42h 23m2 stops
Breeze Airways Logo
9:37 pm - 6:45 pmGSP-ISP
45h 08m2 stops
$1,013Breeze Airways
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Sat, May 10 - Mon, May 12
Breeze Airways Logo
3:59 pm - 7:26 pmISP-GSP
51h 27m3 stops
Breeze Airways Logo
10:30 am - 1:15 pmGSP-ISP
26h 45m3 stops
$1,267Breeze Airways
Find Deal
Fri, Jul 4 - Mon, Jul 7
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.

Find deals

Good to know

High seasonNovember
Cheapest flight$302
Most popular time to fly with an average 16% 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 $442 for a one-way ticket and $302 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.

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 4294 reviews
7.1Food
8.0Comfort
8.6Crew
7.6Entertainment
8.2Boarding
Airline reviews

It is southwest seat was ok. Not the most comfortable seat

8.0 ExcellentJohn, Apr 2025PVD - FLL
Read more Southwest reviews

It is southwest seat was ok. Not the most comfortable seat

I’ve always loved Southwest. No issues at all. I was flying standby and the gate agent was extremely friendly and helpful. Boarding was smooth and I was able to get a window seat in the emergency exit row. Crew was fantastic! They were very professional and accommodating. We had to divert from our destination due to weather but the flight crew kept everyone at ease and informed us of all pertinent information. Excellent flight

The price of the tickets isn't matching the flight experience. No matter how long the flight is, you're only getting pretzels. The flight attendants looked unkept and over it.

Plz don't take away free bags and free seating

The seats were a bit cramped and worn, but otherwise okay.

I would have liked to arrive on time - not 5 hours late!

After a 3 hour layover in Denver my flight was delayed over 5 hours! No explanation; no assistance; no offer to provide compensation; no one at Southwest was willing to offer any assistance. 8 hours in the Denver airport - ridiculous!

It was a perfect flight in all aspects! Both legs!

Only one drink pass through the cabin for a 4 hour flight. Quite rough and bumpy landing.

Boarding process, crew were good. But the seats were so uncomfortable that was all I could focus on. I literally had to sit forward so that all 3 of us could fit in row. I will try to avoid Southwest in the future for any flights over 60 minutes.

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

Information on your arrival and departure airports

Greenville (GSP)
Islip (ISP)

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