Cheap flights from Jacksonville International to Islip

Compare Jacksonville International to Islip flight deals

Find the cheapest month or even day of the year to fly to Islip

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Flight deals from Jacksonville International to Islip

Looking for a cheap last-minute deal or the best return flight from Jacksonville International Airport to Islip Airport? If you want to travel next month, return fares start from $545. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Jacksonville International to Islip

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

Jacksonville to Islip: Flight information

The things to know before you go.
Cheapest flight found$202
Cheapest month to flySeptember

Finding cheap flights from Jacksonville International to Islip: Frequently asked questions

The best price we found for a return flight from Jacksonville International to Islip is $402. 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 Jacksonville International to Islip. But we found flights with one or more stops from $402.
As of June 2026, there are no flights flying from Jacksonville International to Islip.
The cheapest month to fly from Jacksonville International to Islip is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Jacksonville International Airport to Islip Airport on Thursday, 10 September 2026.
No airlines currently offer direct flights between Jacksonville International 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, Breeze Airways offers the cheapest flight tickets to Islip.

Travelling from Jacksonville International Airport (JAX) to Islip Airport (ISP): what you need to know

  • For a smooth journey, turn up at the airport two hours ahead of international flights and one hour before domestic departures. This way, you'll have plenty of time to catch your JAX to ISP flight.

  • Flying during a peak time such as July? Major public holidays and other popular seasons can lead to longer queues and delays at airport checkpoints. Play things extra safe and get there up to four hours before international flights and two hours before a domestic departure.

  • If you'd like to explore another city along the way, simply uncheck 'Direct flights only' when searching for your ticket from Jacksonville International Airport to Islip Airport. Here are the top stopovers between JAX and ISP:

    • Miami International Airport

    • Baltimore Washington International Airport

    • Raleigh / Durham Airport

How to find the cheapest flights from Jacksonville International Airport (JAX) to Islip Airport (ISP)

  • $202 is currently the best price for a one-way Jacksonville International Airport to Islip Airport flight. A return flight starts from $402. These fares may change based on demand.

  • It's usually best to book ahead of time if you want to get cheap tickets from JAX to ISP. That's because flight prices are based on demand, which tends to increase closer to departure.

  • Finding cheap flights from Jacksonville International Airport to Islip Airport is easier if you're flexible with your travel dates. Use the 'Whole month' tool to see the lowest fares across the month and score a great deal.

  • Picking up cheap flights from JAX to ISP is a piece of cake with Price Alerts. Simply create one of these automatic alerts and we'll get in touch when fares go down.

  • Find the right flight for you by using the filters. To see the 'Fastest,' 'Best' or 'Cheapest' flights from Jacksonville International Airport to Islip Airport, use the 'Sort by' tool. You can also filter by airline, departure and arrival times, and journey duration.

Handy information about Jacksonville International Airport (JAX)

  • You'll find JAX at 2400 Yankee Clipper Drive.

  • 81% of flights leaving Jacksonville International Airport arrive at their destination on time. With its impressive on-time stats, you're unlikely to be delayed when taking off from JAX.

  • To reach Jacksonville International Airport from central Jacksonville, it takes about 25 minutes by car. This depends on traffic, however. It's approximately 29 kilometres from the airport to the city centre.

  • The journey on public transport will take about 1 hour 15 minutes.

  • Taking an early flight from Jacksonville International Airport to Islip Airport? Avoid rushing to the airport (and enjoy a little extra shut-eye) by picking one of these hotels close to JAX:

Arriving at Islip Airport (ISP)

When to fly to Islip Airport (ISP)

  • It's time to work out your travel dates for your flight from Jacksonville International Airport to Islip Airport. July is the most popular month to visit Islip. If you prefer a more relaxed vibe, go in December.

  • Before locking in your flight from Jacksonville International Airport to Islip Airport, think about the kind of weather you enjoy. July is the warmest month in Islip, with temperatures ranging from 19ºC (66ºF) to 29ºC (84ºF).

  • January has average temperatures of between -4ºC (25ºF) and 8ºC (46ºF). Search for cheap tickets from JAX to ISP sometime around then if you want to travel when it's cooler.

Explore more of the United States

  • You've done Islip, now it's time to explore more of the United States. Journey around 64 kilometres west to New York to tick off its popular sights. From Central Park to Statue of Liberty and Metropolitan Museum of Art, you've got a jam-packed schedule ahead.

  • Philadelphia is another favourite destination in the United States and is around 193 kilometres south-west of Islip. No trip is complete without seeing Independence Hall, Liberty Bell and Philadelphia Museum of Art.

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