JAX - ISP

$123 Find Cheap Flights from Jacksonville to Islip - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Jacksonville to Islip departing on 8/27. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$245
Typical prices: $366-$532
Breeze Airways, Frontier
Wed 8/26Wed 9/2
JAX - ISP • 1 stop
Cheapest one-way
$121
Typical prices: $132-$224
Breeze Airways
Thu 8/27
JAX - ISP • 1 stop
Top airlines
Cheapest • from $282 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Jacksonville and Islip. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Islip!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Jacksonville to Islip (JAX-ISP)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Jacksonville to Islip that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Jacksonville to Islip

Wed, Aug 26 - Wed, Sep 2
Multiple Airlines Logo
4:44 pm - 7:09 pm
JAX
-
ISP
26h 25m
1 stop
Multiple Airlines Logo
10:57 am - 6:10 pm
ISP
-
JAX
31h 13m
2 stops
$245Multiple Airlines
Fri, Nov 6 - Sun, Nov 8
Multiple Airlines Logo
6:46 pm - 11:20 am
JAX
-
ISP
16h 34m
2 stops
Multiple Airlines Logo
10:57 am - 8:28 pm
ISP
-
JAX
9h 31m
1 stop
$267Multiple Airlines
Thu, Oct 15 - Sun, Oct 18
Multiple Airlines Logo
12:54 pm - 6:51 pm
JAX
-
ISP
5h 57m
1 stop
Multiple Airlines Logo
4:13 pm - 5:51 pm
ISP
-
JAX
25h 38m
2 stops
$276Multiple Airlines
Thu, Oct 15 - Sun, Oct 18
Breeze Airways Logo
12:54 pm - 6:51 pm
JAX
-
ISP
5h 57m
1 stop
Breeze Airways Logo
10:57 am - 8:28 pm
ISP
-
JAX
9h 31m
1 stop
$282Breeze Airways
Sat, Oct 3 - Tue, Oct 6
Southwest Logo
5:35 pm - 9:45 pm
JAX
-
ISP
4h 10m
1 stop
Southwest Logo
9:40 am - 1:50 pm
ISP
-
JAX
4h 10m
1 stop
$325Southwest
Wed, Aug 26 - Wed, Sep 2
Southwest Logo
8:00 am - 12:10 pm
JAX
-
ISP
4h 10m
1 stop
Southwest Logo
12:55 pm - 7:45 pm
ISP
-
JAX
6h 50m
1 stop
$325Southwest
Sat, Oct 3 - Tue, Oct 6
Southwest Logo
1:20 pm - 9:45 pm
JAX
-
ISP
8h 25m
2 stops
Southwest Logo
9:40 am - 1:50 pm
ISP
-
JAX
4h 10m
1 stop
$330Southwest
Tue, Sep 29 - Wed, Sep 30
JetBlue Logo
3:25 pm - 11:22 pm
JAX
-
ISP
7h 57m
1 stop
JetBlue Logo
7:00 am - 2:29 pm
ISP
-
JAX
7h 29m
1 stop
$435JetBlue
Sat, Sep 26 - Tue, Sep 29
JetBlue Logo
3:25 pm - 11:22 pm
JAX
-
ISP
7h 57m
1 stop
JetBlue Logo
7:00 am - 2:29 pm
ISP
-
JAX
7h 29m
1 stop
$435JetBlue
Sat, Oct 10 - Sat, Oct 24
JetBlue Logo
3:33 pm - 9:35 pm
JAX
-
ISP
6h 02m
1 stop
JetBlue Logo
6:00 am - 2:37 pm
ISP
-
JAX
8h 37m
1 stop
$435JetBlue
Booking Insights

KAYAK's insights & trends for Jacksonville to Islip flights

Get data-powered insights and trends into flights from Jacksonville to Islip to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Jacksonville to Islip, New York?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Jacksonville to Islip, New York departing in November.

Flight prices are below average for this route right now.

Flights to Islip, New York from Jacksonville usually cost between $426 and $646 in November.
The lowest price found in the past 5 days was $267 on Multiple Airlines (Nov 6-Nov 8).

What is the cheapest month to fly from Jacksonville to Islip?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Jacksonville to Islip, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Jacksonville to Islip is February, where tickets cost $0 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is $574 and $562 respectively.

Good to know

Low season

March

Cheapest flight

$123
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Jacksonville to Islip

When to book flights from Jacksonville to Islip

Are your dates flexible? Find out the best times to travel from Jacksonville to Islip based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Jacksonville to Islip

  • What is the cheapest flight from Jacksonville to Islip?

    In the last 5 days, the lowest price for a flight from Jacksonville to Islip was $121 for a one-way ticket and $245 for a round-trip.

  • Do I need a passport to fly between Jacksonville and Islip?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which aircraft models fly most regularly from Jacksonville to Islip?

    We unfortunately don’t have that data for this specific route.

  • Which is the best airline for flights from Jacksonville to Islip, Southwest or JetBlue?

    The two airlines most popular with KAYAK users for flights from Jacksonville to Islip are Southwest and JetBlue. With an average price for the route of $426 and an overall rating of 8.0, Southwest is the most popular choice. JetBlue is also a great choice for the route, with an average price of $417 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from Jacksonville to Islip?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Jacksonville to Islip.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Jacksonville to Islip?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Islip from Jacksonville is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Jacksonville to Islip?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Islip with an airline and back to Jacksonville with another airline. Booking your flights between Jacksonville and ISP can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Jacksonville to Islip?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Islip from Jacksonville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Jacksonville to Islip

 
See real verified KAYAK customer reviews for airlines flying from Jacksonville to Islip. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Jacksonville to Islip? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4227 reviews
7.0Food
8.1Boarding
8.0Comfort
8.6Crew
7.5Entertainment
Airline reviews

Had a great flight. Delayed takeoff, but comfortable. Snacks were good.

10.0 ExcellentMelissa, Mar 2026
MSY - LGA
Read more Southwest reviews

Had a great flight. Delayed takeoff, but comfortable. Snacks were good.

Departure was delayed more than 1/2 hour while we waited for luggage (only) transfer from another flight/plane. Once approved for takeoff, the flight was excellent.

Pretty seamless, just a tad bit late in taking off and landing.

after landing, we stay 2 hours on the taxi way before reaching the gate The airline and the crew were good though

My flight to Chicago left and landed early. My return flight left two minutes late and arrived 2 minutes late. My seat selections were ideal! There were no snacks going to Chicago and no snacks on the return trip. There are no charging outlets on board.

Gate agents were informative and friendly… flight attendants were as well. Had a fun time chatting about their legacy AirTran experiences as a former fan of the airline that Southwest acquired.

The fluidity of the entire process of boarding the plane the flight attendants attentiveness. The flight attendants also provided coloring books for my kids who loved it.

The crew and everyone on board was wonderful, We had to wait for a flight attendant to come from Orlando to Jax after a sudden illness., We left an hour late and “missed “ our connection.flight. The plane was held for us but we were told that our bags probably wouldn’t make the flight even though we would and would have to return to the airport in Boston pick up our late luggage or choose to fly on the same flight as our luggage. We chose to wait 4 hours on the next flight with our luggage and missed our first day in Boston for our grand daughter’s 10th bday celebration. When we arrived on the next flight, our luggage was sitting in a room waiting on us - evidently it did make out original flight., We were given meal vouchers in Baltimore for our delay which we really appreciated and thought was a very kind gesture by Southwest - sudden illnesses are not their fault., I just feel like we would not have missed an entire day in Boston if you offered more early morning direct flights and /or had offered to deliver our luggage to the hotel instead of us having to return to the airport to retrieve our luggage on the next flight due to a technicality - it wasn't “lost luggage”. Other than that , it was a perfect flight .

C Am handicapped and couldn't get help with my luggage.

Always dependable. No surprises. That’s how I like to fly!

I tried to book a flight with Jet Blue. Your third party company hijacked my attempt with a website that looked like I was booking with Jet Blue. I realized it when I paid. I tried to cancel and was told by a man in India that there were no refunds. $735 stolen, Thanks Kayak!

The flight out was delayed from 3:40pm to 5pm and again to 8pm. We boarded after 5pm, had to disembark because they could not get the Engine started, then we switched gates and got a new plane and did not board until after 8pm.

My experience with JetBlue was fine BUT I am very upset with Kayak! JetBlue had delayed our scheduled departure by an hour and you NEVER notified me of the change. I did not hear directly from JetBlue because the trip was booked through Kayak, a mistake I will not repeat. Your reminder of the our trip last week still had the WRONG departure time. Our return trip has also changed, and again no notice from you.

The flight was delayed 4 hours and the JetBlue people at the counter kept lying to us and telling us it was due to weather however all other flights were going in and out of NY and FL. Then they lied that the plane had to stop to refuel. Then they lied and said the plane needed a tire change. JetBlue is the worst. Then they gave a lot of people meal vouchers however I didn’t know they did that and they didn’t offer anything to me.

I was traveling with two small kids and our TV s were the only ones not working. Informed the flight attendant who did nothing about them.

I was especially impressed without efficiently the crew got passengers on and off. One of the stewards was slightly gruff, I thought. No big deal but that's what I noticed.

They made me check my bag and I didn't need to as there was overhead space available. I paid for a seat towards the front of the plane and it didn't recline. I requested a refund and they declined to give me one.

Friendly crew, efficient boarding and flight arrived early. Couldn’t ask for a better experience

Horribly rude check in at airport, worst in 25 years of flying. All over a simple issue they could have googled to resolve.

1) No pilot available for 1 hour 2) no room for most passengers careyon in overhead—-> stowed below 3) when we landed we had to wait 45 min. Before docking at gate as gate was not ready

Everything you need to know for your flight from Jacksonville to Islip

Information on your arrival and departure airports