JAX - ISP

$102 Find Cheap Flights from Jacksonville to Islip

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 5/14. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Islip

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Jacksonville to Islip, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Jacksonville to Islip, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$298
Overall average: $434
Breeze Airways
Thu 2/26Thu 3/5
JAX - ISP • 1 stop
Cheapest one-way
$102
Typical prices: $114-$150
Breeze Airways
Thu 5/14
JAX - ISP • 1 stop
Top airlines
Breeze Airways
Cheapest • from $298 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
October
Cheapest • 24% price drop
September
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
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

Thu, Feb 26 - Thu, Mar 5
Breeze Airways Logo
5:51 pm - 1:31 pm
JAX
-
ISP
19h 40m
1 stop
Breeze Airways Logo
7:26 pm - 7:47 pm
ISP
-
JAX
24h 21m
1 stop
$298Breeze Airways
Thu, Feb 26 - Thu, Mar 5
Multiple Airlines Logo
11:21 am - 7:38 am
JAX
-
ISP
20h 17m
2 stops
Multiple Airlines Logo
7:26 pm - 7:47 pm
ISP
-
JAX
24h 21m
1 stop
$304Multiple Airlines
Fri, May 15 - Tue, May 19
Southwest Logo
5:00 pm - 11:30 pm
JAX
-
ISP
6h 30m
1 stop
Southwest Logo
4:10 pm - 8:45 pm
ISP
-
JAX
4h 35m
1 stop
$308Southwest
Fri, May 15 - Tue, May 19
Southwest Logo
2:30 pm - 11:30 pm
JAX
-
ISP
9h 00m
2 stops
Southwest Logo
9:00 am - 3:45 pm
ISP
-
JAX
6h 45m
1 stop
$313Southwest
Fri, May 15 - Tue, May 19
Southwest Logo
2:30 pm - 11:30 pm
JAX
-
ISP
9h 00m
2 stops
Southwest Logo
6:55 am - 3:45 pm
ISP
-
JAX
8h 50m
2 stops
$318Southwest
Sat, Apr 18 - Sat, Apr 25
Southwest Logo
6:35 pm - 11:20 pm
JAX
-
ISP
4h 45m
1 stop
Southwest Logo
4:40 pm - 9:55 pm
ISP
-
JAX
5h 15m
1 stop
$319Southwest
Sat, Apr 18 - Sat, Apr 25
Southwest Logo
6:10 am - 4:00 pm
JAX
-
ISP
9h 50m
2 stops
Southwest Logo
4:40 pm - 9:55 pm
ISP
-
JAX
5h 15m
1 stop
$324Southwest
Sat, Apr 18 - Sat, Apr 25
Southwest Logo
6:10 am - 3:45 pm
JAX
-
ISP
9h 35m
2 stops
Southwest Logo
6:00 am - 5:45 pm
ISP
-
JAX
11h 45m
2 stops
$335Southwest
Tue, Jun 23 - Tue, Jun 30
Southwest Logo
4:45 pm - 10:35 pm
JAX
-
ISP
5h 50m
1 stop
Southwest Logo
2:55 pm - 8:50 pm
ISP
-
JAX
5h 55m
1 stop
$337Southwest
Tue, Jun 23 - Tue, Jun 30
Southwest Logo
4:45 pm - 10:35 pm
JAX
-
ISP
5h 50m
1 stop
Southwest Logo
9:00 am - 5:40 pm
ISP
-
JAX
8h 40m
2 stops
$342Southwest
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.

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 October, where tickets cost $311 (return) on average. On the other hand, the most expensive months are January and April, where the average cost of round-trip tickets is $647 and $446 respectively.

Good to know

Low seasonJanuary
Cheapest flight$102
Best time to beat the crowds but there is an average 57% increase 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 3 days, the lowest price for a flight from Jacksonville to Islip was $102 for a one-way ticket and $298 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.

  • What is the most popular layover when flying to Islip from Jacksonville?

    Baltimore is the most popular layover city among KAYAK users traveling from Jacksonville to Islip.

  • 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 $386 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 7.2.

  • 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 4267 reviews
8.1Boarding
8.0Comfort
8.6Crew
7.0Food
7.5Entertainment
Airline reviews

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.

10.0 ExcellentDaniel, Jan 2026
JAX - BWI
Read more Southwest reviews

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.

Flight was on time. Wi-fi was a little spotty/slow. Boarding and exit were efficient.

Near 4 hour flight with only 1 service. Had to use call button to request water. Internet and power not working until into flight. Internet would stop working during flight.

My flight was delayed 50 minutes and we were rushed to board to then sit for 15 minutes until the pilot arrived. Unacceptable since we could have waited to board. Also the delayed flight was updated AFTER we boarded to more than the 10 minutes as originally stated.

If we are going to have to pay for luggage, make it easier to do. Put something on the app during check-in so I don't need to do it at the kiosk. I've done it twice recently and I ended up having to pay at the desk because something went wrong at the kiosk in Tampa.

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

Everything was on time. I was disappointed by the front section female, African American flight attendant. I did not see her name tag or would have identified by name not race. As passengers moved to the bathroom early in flight, she would say with a disdainful tone “I have to say the seat belt light is on” then go back to her book. Better trained flight attendants say something like be careful the seat belt light is on.

The price of the tickets isn't matching the flight experience. No matter how long the flight is, you're only getting pretzels. The flight attendants looked unkept and over it.

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.

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

The ride share experience in JFK is terrible. After traveling on a flight, then you need to take a subway to the last stop to get an uber or lyft. Unacceptable. Bad job JetBlue for permitting JFK and Port Authority to do this to your passengers.

The flight was two hours late due to a computer fault and resulting maintenance. Nothing was offered as compensation beyond bottles of water during the time we were deplaned and waiting in the terminal.

Four plus hour flight delay in New York caused us to take off after 11:30pm. We didn’t arrive at our hotel until five hours after check in. Started the trip off feeling exhausted.

I don’t usually fly budget airlines or airlines in the United States. It was as good as any other airline. The seats are comfortable and the airline attendants are not rude & surly. Very nice flight (s).

They have the most inexperienced / rude flight staff I’ve encountered

very difficult boarding process - aggressive passengers not the friendliest crew

WiFi was not eorkig (again) And the plane was from 1990 with the screens which were.not touch and most didn’t even work and if lucky could tune in tv

I paid extra for a seat closer to the front. The TV didn’t work at all for the entire flight. Would have been nice to know before I purchased an “upgraded “ seat

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

Information on your arrival and departure airports