Cheap Flights from Greenville-Spartanburg to Islip

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Flight deals from Greenville-Spartanburg to Islip

Looking for a cheap last-minute deal or the best return flight from Greenville-Spartanburg Airport to Islip Airport? If you want to travel next month, return fares start from R 5,196. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Greenville-Spartanburg to Islip

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Greenville-Spartanburg to Islip flights are currently cheapest in August.

Greenville to Islip: Flight information

The things to know before you go.
Cheapest flight foundR 2,187
Cheapest month to flyAugust

Finding cheap flights from Greenville-Spartanburg to Islip: Frequently asked questions

The best price we found for a return flight from Greenville-Spartanburg to Islip is R 5,196. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Greenville-Spartanburg to Islip. But we found flights with one or more stops from R 5,187.
As of July 2026, there are no flights flying from Greenville-Spartanburg to Islip.
The cheapest month to fly from Greenville-Spartanburg to Islip is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Greenville-Spartanburg Airport to Islip Airport on Thursday, 27 August 2026.
No airlines currently offer direct flights between Greenville-Spartanburg Airport and Islip Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Islip but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Islip is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, Southwest Airlines offers the cheapest flight tickets to Islip.

Travelling from Greenville-Spartanburg Airport (GSP) to Islip Airport (ISP): what you need to know

  • To ensure you get on your GSP to ISP flight, allow plenty of time to check in and find your gate. Turning up two hours ahead of international departures and one hour before domestic flights is the general rule.

  • During popular months such as August, it's a good idea to get to the airport even earlier. Arrive two hours before domestic departures and four hours ahead of international flights whenever you're flying during a peak period in general.

  • We make it a breeze to book a flight with a stopover. To see your options for tickets from Greenville-Spartanburg Airport to Islip Airport, deselect 'Direct flights only.' Then, choose a flight offering a stop long enough to visit your chosen city. Worthwhile stopovers between GSP and ISP include:

    • Atlanta Hartsfield-Jackson Airport

    • Orlando International Airport

    • Baltimore Washington International Airport

How to find the cheapest flights from Greenville-Spartanburg Airport (GSP) to Islip Airport (ISP)

  • R 2,183 is the lowest price for a one-way Greenville-Spartanburg Airport to Islip Airport flight. A return flight starts from R 5,196. These fares may change based on availability.

  • To score cheap tickets from GSP to ISP, book as early as you can. Airlines generally offer lower prices when flights are first made available.

  • If you can be flexible with your trip dates, use the 'Whole month' search function. It'll find the lowest price in every month when looking for a flight from Greenville-Spartanburg Airport to Islip Airport.

  • Spend less time searching for cheap flights from GSP to ISP by creating a Price Alert. You'll get an email or push notification on the app when a lower fare pops up.

  • Secure the right flight for you with the help of the filters. To see the 'Fastest,' 'Cheapest' or 'Best' flights from Greenville-Spartanburg Airport to Islip Airport, use the 'Sort by' tool. You can also filter by departure and arrival times, airline, and number of stops.

Handy information about Greenville-Spartanburg Airport (GSP)

  • You'll find GSP at 2000 GPS Drive, Suite 1.

  • When it comes to Greenville-Spartanburg Airport's on-time performance, 79% of flights arrive within the scheduled timeframe.

  • Greenville-Spartanburg Airport is around 23 kilometres from central Greenville. If you're driving, ride-sharing or catching a taxi from the centre, it'll take 25 minutes or so to arrive, depending on the traffic.

  • The trip on public transport will take about 50 minutes.

  • Taking an early flight from Greenville-Spartanburg Airport to Islip Airport? Avoid the stress of rushing to the airport (and sneak in some extra snooze time) by choosing one of these hotels near GSP:

Arriving at Islip Airport (ISP)

Getting from Islip Airport (ISP) to central Islip

  • The address for ISP is 100 Arrivals Avenue.

  • From Islip Airport, Islip is approximately 6 kilometres away. It takes around 10 minutes to get to the centre driving.

  • If you're using public transport, expect a journey of about 30 minutes.

When to fly to Islip Airport (ISP)

  • It's time to work out your dates for your flight from Greenville-Spartanburg Airport to Islip Airport. July is the most popular month to head to Islip. If you prefer a more low-key vibe, go in December.

  • Book your flight from Greenville-Spartanburg Airport to Islip Airport for July if you want to visit Islip during its warmest month. You can expect temperatures of between 19ºC (66ºF) and 29ºC (84ºF).

  • For cooler conditions, look for a cheap ticket from GSP to ISP in January. Average temperatures are between -4ºC (25ºF) and 8ºC (46ºF) then.

Explore more of the United States

  • New York is just one of the many places in the United States waiting to be explored once you've seen the sights of Islip. Around 64 kilometres away to the west, its top attractions include Central Park, Statue of Liberty and Metropolitan Museum of Art.

  • If you want to check out another major destination in the United States, consider Philadelphia, roughly 193 kilometres south-west of Islip. Independence Hall, Liberty Bell and Philadelphia Museum of Art are among its highlights.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.