$111 Cheap Flights from Jacksonville (JAX) to Islip (ISP)

View $111 flight on Thu, Sep 3, 2026Opens in a new window

Popular airlines from Jacksonville International Airport (JAX) to MacArthur Airport (ISP)

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Cheap Flights from Jacksonville to Islip (JAX-ISP)

Prices were available within the past 7 days and start at $111 for one-way flights and $251 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Wed, Apr 15 - Wed, Apr 22
JAX
Jacksonville
ISP
Islip
$251 Roundtrip, found 1 day ago
$251
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Wed, Apr 15 from Jacksonville to Islip, returning Wed, Apr 22, priced at $251 found 1 day ago
Breeze Airways
Thu, Jul 2 - Tue, Jul 7
JAX
Jacksonville
ISP
Islip
$279 Roundtrip, found 1 day ago
$279
Roundtrip
found 1 day ago
Select Breeze Airways flight, departing Thu, Jul 2 from Jacksonville to Islip, returning Tue, Jul 7, priced at $279 found 1 day ago
Southwest Airlines
Fri, Aug 21 - Tue, Aug 25
JAX
Jacksonville
ISP
Islip
$282 Roundtrip, found 1 day ago
$282
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Fri, Aug 21 from Jacksonville to Islip, returning Tue, Aug 25, priced at $282 found 1 day ago
Southwest Airlines
Fri, Aug 21 - Tue, Aug 25
JAX
Jacksonville
ISP
Islip
$287 Roundtrip, found 1 day ago
$287
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Fri, Aug 21 from Jacksonville to Islip, returning Tue, Aug 25, priced at $287 found 1 day ago
Breeze Airways
Thu, Jul 2 - Tue, Jul 7
JAX
Jacksonville
ISP
Islip
$289 Roundtrip, found 1 day ago
$289
Roundtrip
found 1 day ago
Select Breeze Airways flight, departing Thu, Jul 2 from Jacksonville to Islip, returning Tue, Jul 7, priced at $289 found 1 day ago
Southwest Airlines
Fri, Aug 21 - Tue, Aug 25
JAX
Jacksonville
ISP
Islip
$302 Roundtrip, found 1 day ago
$302
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Fri, Aug 21 from Jacksonville to Islip, returning Tue, Aug 25, priced at $302 found 1 day ago
Breeze Airways
Thu, May 14 - Sun, May 17
JAX
Jacksonville
ISP
Islip
$305 Roundtrip, found 3 days ago
$305
Roundtrip
found 3 days ago
Select Breeze Airways flight, departing Thu, May 14 from Jacksonville to Islip, returning Sun, May 17, priced at $305 found 3 days ago
Breeze Airways
Thu, May 14 - Sun, May 17
JAX
Jacksonville
ISP
Islip
$310 Roundtrip, found 3 days ago
$310
Roundtrip
found 3 days ago
Select Breeze Airways flight, departing Thu, May 14 from Jacksonville to Islip, returning Sun, May 17, priced at $310 found 3 days ago
Breeze Airways
Thu, Jul 2 - Tue, Jul 7
JAX
Jacksonville
ISP
Islip
$316 Roundtrip, found 1 day ago
$316
Roundtrip
found 1 day ago
Select Breeze Airways flight, departing Thu, Jul 2 from Jacksonville to Islip, returning Tue, Jul 7, priced at $316 found 1 day ago
JetBlue Airways
Fri, Mar 20 - Mon, Mar 23
JAX
Jacksonville
ISP
Islip
$352 Roundtrip, found 6 days ago
$352
Roundtrip
found 6 days ago
Select JetBlue Airways flight, departing Fri, Mar 20 from Jacksonville to Islip, returning Mon, Mar 23, priced at $352 found 6 days ago

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Alternative airports near Islip

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to MacArthur ISP. Cheapest and Closest option available. Average driving time to city center is 14 minutes. Flights from $939
ISP
MacArthur
CheapestClosest
Average driving time to city center14 min
Flights from $939

Frequently asked questions

How much does a flight from Jacksonville, FL (JAX-Jacksonville Intl.) to Islip, NY (ISP-MacArthur) cost?
You can find cheap one-way flights from $111 and cheap return flights from $251 Jacksonville, FL (JAX-Jacksonville Intl.) to Islip, NY (ISP-MacArthur) with Expedia. One-way flights generally range between $243 and $1282, and roundtrip flights usually range from $412 to $1510. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Jacksonville, FL (JAX-Jacksonville Intl.) to Islip, NY (ISP-MacArthur) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Jacksonville, FL (JAX-Jacksonville Intl.) to Islip, NY (ISP-MacArthur)?
The cheapest month to fly from JAX to ISP is April when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Jacksonville, FL (JAX-Jacksonville Intl.) to Islip, NY (ISP-MacArthur)?
Enter JAX to ISP and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Jacksonville, FL (JAX-Jacksonville Intl.) to Islip, NY (ISP-MacArthur)?
Southwest Airlines is one of the cheapest airlines offering connecting flights from Jacksonville (JAX) to Islip (ISP) with a layover in Nashville (BNA), starting from around $222 for a round-trip ticket. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Jacksonville, FL (JAX-Jacksonville Intl.) to Islip, NY (ISP-MacArthur)?
To find a cheap flight from Jacksonville, FL (JAX-Jacksonville Intl.) to Islip, NY (ISP-MacArthur), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Jacksonville, FL (JAX-Jacksonville Intl.) to Islip, NY (ISP-MacArthur)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Jacksonville, FL (JAX-Jacksonville Intl.) to Islip, NY (ISP-MacArthur)?
The earliest flight from Jacksonville (JAX) to Islip (ISP) usually departs at around 5:00 AM, operated by American Airlines and 9K. This seasonal service is active in December, giving you a head start on your day in New York. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Jacksonville, FL (JAX-Jacksonville Intl.) to Islip, NY (ISP-MacArthur)?
The most popular departure times for flights from Jacksonville (JAX) to Islip (ISP) are in the early morning, from 6am to 9am. About 47% of passengers prefer this time window. Many major carriers, including Southwest Airlines, American Airlines and United Airlines, offer flights during this window. This timing is popular because it lets you start your day early and arrive at your destination with plenty of time to spare.
How long does it take to fly from Jacksonville, FL (JAX-Jacksonville Intl.) to Islip, NY (ISP-MacArthur)?
Flying from JAX to ISP with a connection usually takes about 5 hours 20 minutes, traveling roughly 858 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Jacksonville, FL (JAX-Jacksonville Intl.) to Islip, NY (ISP-MacArthur)?
Select the "Business class" and "First class" filters when looking for JAX to ISP flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Jacksonville, FL (JAX-Jacksonville Intl.) to Islip, NY (ISP-MacArthur) flight with Expedia?
It's easy to earn miles on a Jacksonville, FL (JAX-Jacksonville Intl.) to Islip, NY (ISP-MacArthur) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Islip from Jacksonville Intl. (JAX)?
If you're planning to travel to Islip from Jacksonville Intl. (JAX), you can fly into MacArthur (ISP) Some flights may connect through major hubs like Liberty Intl. (EWR), O'Hare Intl. (ORD), Charlotte-Douglas Intl. (CLT) before reaching Islip. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Jacksonville, FL (JAX-Jacksonville Intl.) to Islip, NY (ISP-MacArthur) at the last minute?
Typically, booking a last minute flight from Jacksonville, FL (JAX-Jacksonville Intl.) to Islip, NY (ISP-MacArthur) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Jacksonville, FL (JAX-Jacksonville Intl.) to Islip, NY (ISP-MacArthur) flight and hotel package?
Securing a Jacksonville, FL (JAX-Jacksonville Intl.) to Islip, NY (ISP-MacArthur) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Jacksonville, FL (JAX-Jacksonville Intl.) to Islip, NY (ISP-MacArthur)?
If you booked your Jacksonville, FL (JAX-Jacksonville Intl.) to Islip, NY (ISP-MacArthur) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Jacksonville Intl.
Destination airport
MacArthur
Airlines serving
Breeze Airways, JetBlue Airways, Southwest Airlines
Roundtrip price
$251
Distance
858 mi

Book with confidence

Jacksonville to Islip Flights

The cheapest times to fly from Jacksonville to Islip

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Jacksonville to Islip are during the month of April. You can find some of the cheapest flights from Jacksonville to Islip with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Jacksonville to Islip

Sunday is one of the best days to book for cheap flights from Jacksonville to Islip: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Jacksonville to Islip

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Jacksonville to Islip in 2026. You can also book with separate airlines for your outbound and return journeys, from $111 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Jacksonville to Islip flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Jacksonville to Islip airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Jacksonville to Islip Flights

*Flight schedules are subject to change.

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*Available to One Key members.