266 € Cheap Flights from Jacksonville International to Islip

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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 March.

Jacksonville to Islip: Flight information

The things to know before you go.
Cheapest flight found266 €
Cheapest month to flyMarch

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 266 €. 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 266 €.
As of February 2026, there are no flights flying from Jacksonville International to Islip.
The cheapest month to fly from Jacksonville International to Islip is usually March.
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, 26 March 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, Frontier Airlines offers the cheapest flight tickets to Islip.

Flying from Jacksonville International Airport (JAX) to Long Island MacArthur Airport (ISP): what you need to know

  • Give yourself plenty of time to make your JAX to ISP flight. As a general rule, arrive at least two hours before international departures and an hour ahead for domestic flights.

  • Be prepared for bigger queues in popular months like July. Arriving up to four hours ahead of international flights and two hours for a domestic departure is a wise move.

  • If you'd like to add a stop to your trip, just uncheck 'Direct flights only' when searching for your ticket from Jacksonville International Airport to Long Island MacArthur Airport. These are the most popular stopovers between JAX and ISP:

    • Baltimore/Wash International Thurgood Marshall Airport

    • Raleigh-Durham International Airport

    • Miami International Airport

How to find the cheapest flights from Jacksonville International Airport (JAX) to Long Island MacArthur Airport (ISP)

  • The cheapest price we've found for a one-way Jacksonville International Airport to Long Island MacArthur Airport flight is 157 €. A return ticket right now is 266 €. Depending on the availability and when you book, these fares can change.

  • To get your hands on cheap tickets from JAX to ISP, book ahead. Airlines tend to offer their best fares when flights are first made available.

  • Getting cheap flights from Jacksonville International Airport to Long Island MacArthur Airport is easy if you can be flexible with your travel dates. Use the 'Whole month' search function to see the lowest prices across every month and snap up a great deal.

  • You don't need to check every day to see if fares have dropped when you set up a Price Alert. We'll notify you as soon as a special offer becomes available on cheap flights from JAX to ISP.

  • Discover the ideal flight for you by using the filters. To see the 'Best,' 'Fastest' or 'Cheapest' flights from Jacksonville International Airport to Long Island MacArthur Airport, use the 'Sort by' tool. You can also filter by arrival and departure times, airline, and number of stops.

Handy information about Jacksonville International Airport (JAX)

  • JAX is located at 2400 Yankee Clipper Drive.

  • Jacksonville International Airport gets top marks for its on-time performance. 80.42% of flights that take off from JAX reach their destination on time.

  • To reach Jacksonville International Airport from central Jacksonville, it'll take around 15 minutes by car. Of course, this depends on traffic. It's approximately 23 kilometres from the airport to the city centre.

  • Planning to take public transport? You can expect a journey time of around 1 hour 20 minutes.

  • Get your journey off to a stress-free start by staying near JAX. Whether you're taking an early flight from Jacksonville International Airport to Long Island MacArthur Airport or just don't want to be rushed, these hotels are ideal:

Arriving at Long Island MacArthur Airport (ISP)

Getting from Long Island MacArthur Airport (ISP) to central Islip

  • You'll find ISP at 100 Arrivals Avenue.

  • Long Island MacArthur Airport to the centre of Islip has a drive time of about 15 minutes. It's approximately 16 kilometres away.

  • Getting there by public transport takes roughly 1 hour 10 minutes.

When to fly to Long Island MacArthur Airport (ISP)

  • August is the most popular month for flights from Jacksonville International Airport to Long Island MacArthur Airport. To skip the crowds, visit Islip in May.

  • Lock in your flight from Jacksonville International Airport to Long Island MacArthur Airport for July if you want to explore Islip during its warmest month. Expect temperatures of between 19ºC (66ºF) and 29ºC (84ºF).

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

Explore more of United States

  • New York is just one of the many cities in United States waiting to be discovered once you've taken in the sights of Islip. Around 64 kilometres away to the west, popular attractions include Statue of Liberty, Central Park and Empire State Building.

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

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.