$99 Cheap Flights from Jacksonville (JAX) to Islip (ISP)

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
Find available prices by choosing your travel dates.

Cheap Flights from Jacksonville to Islip (JAX-ISP)

Prices were available within the past 7 days and start at $99 for one-way flights and $217 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
JetBlue Airways
Breeze Airways
Breeze Airways
Breeze Airways
JetBlue Airways
Southwest Airlines
JetBlue Airways
Southwest Airlines
Breeze Airways

Frequently asked questions

How much does a flight from Jacksonville Intl. Airport (JAX) to MacArthur Airport (ISP) cost?
Discover the latest flight deals from JAX to ISP by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from JAX to ISP?
The cheapest flights from JAX to ISP are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from JAX to ISP?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from JAX to ISP. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Jacksonville Intl. Airport (JAX) to MacArthur Airport (ISP)?
There are no daily direct flights from Jacksonville Intl. Airport (JAX) to MacArthur Airport (ISP). But you can opt for flights with layovers. Filter your search results on Expedia to include one or two stops, and you’ll be on your way before you know it.
What day of the week has the most flights from JAX to ISP?
Typically you’ll have the most choice when it comes to flights on a Friday. Tuesdays are often the quietest.* However, this can change depending on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Jacksonville Intl. Airport (JAX) to MacArthur Airport (ISP)?
To reach MacArthur Airport (ISP) on time, opt for a flight that leaves Jacksonville Intl. Airport (JAX) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for Islip from Jacksonville Intl. Airport (JAX)?
You can touch down at any of these Islip airports after your direct flight from Jacksonville Intl. Airport (JAX):

  • LaGuardia Airport (LGA)
  • John F. Kennedy Intl. Airport (JFK)
  • Tweed - New Haven Regional Airport (HVN)

Is it cheaper to buy a plane ticket from Jacksonville Intl. Airport (JAX) to MacArthur Airport (ISP) last-minute?
Last-minute bookings from JAX to ISP are typically more expensive. For the lowest prices, start searching for flights ahead of time. That said, if your travel plans are flexible, you may find a cheap ticket right before your trip.
Is it cheaper to book a JAX to ISP flight and hotel package?
Compared with arranging flights and hotels separately, booking a JAX to ISP flight and hotel package with Expedia could lead to significant savings. Better still, managing everything in one place will take the hassle out of planning your trip. Just secure your flights and choose from our extensive range of hotels, then personalize your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Jacksonville Intl. Airport (JAX) to MacArthur Airport (ISP)?
In most cases, you’re able to cancel or reschedule your JAX to ISP flight. However, there may be additional fees, especially if you booked over 24 hours ago. Double-check your itinerary for the airline’s rules and fees on flight changes, or if you’d like further information, visit our Customer Service portal.
*Available to One Key members.