ISP - JAX

$167 Find Cheap Flights from Islip to Jacksonville

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Islip to Jacksonville departing on 4/24. 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 Jacksonville

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Islip to Jacksonville, 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 Islip to Jacksonville, as well as popular online travel agencies
Travelers love KAYAK
41 299 237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$321
Typical prices: $401-$363
Southwest
Sun 5/31Wed 6/3
ISP - JAX • 1 stop
Cheapest one-way
$167
Multiple Airlines
Fri 4/24
ISP - JAX • 3 stops
Top airlines
Cheapest • from $321 (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 Islip and Jacksonville. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $241 (round-trip)
Shortest trip • 4h 46m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 42% price drop
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 Jacksonville!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Islip to Jacksonville (ISP-JAX)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Islip to Jacksonville 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 Islip to Jacksonville

Sun, May 31 - Wed, Jun 3
Southwest Logo
6:05 am - 10:15 am
ISP
-
JAX
4h 10m
1 stop
Southwest Logo
4:05 pm - 10:10 pm
JAX
-
ISP
6h 05m
1 stop
$321Southwest
Sun, May 31 - Wed, Jun 3
Southwest Logo
6:05 am - 3:35 pm
ISP
-
JAX
9h 30m
2 stops
Southwest Logo
6:00 pm - 10:10 pm
JAX
-
ISP
4h 10m
1 stop
$326Southwest
Sat, May 23 - Wed, May 27
Multiple Airlines Logo
11:57 am - 8:38 am
ISP
-
JAX
20h 41m
1 stop
Multiple Airlines Logo
6:30 pm - 10:05 am
JAX
-
ISP
39h 35m
2 stops
$328Multiple Airlines
Sun, May 31 - Wed, Jun 3
Southwest Logo
5:15 am - 1:40 pm
ISP
-
JAX
8h 25m
2 stops
Southwest Logo
1:15 pm - 10:10 pm
JAX
-
ISP
8h 55m
2 stops
$331Southwest
Sun, Apr 12 - Thu, Apr 16
Breeze Airways Logo
7:26 pm - 7:47 pm
ISP
-
JAX
24h 21m
1 stop
Breeze Airways Logo
5:51 pm - 1:31 pm
JAX
-
ISP
19h 40m
1 stop
$335Breeze Airways
Sun, Apr 26 - Sun, May 3
Multiple Airlines Logo
7:26 pm - 7:47 pm
ISP
-
JAX
24h 21m
1 stop
Multiple Airlines Logo
6:25 pm - 11:00 am
JAX
-
ISP
40h 35m
2 stops
$349Multiple Airlines
Wed, Apr 29 - Wed, May 6
Southwest Logo
9:00 am - 1:40 pm
ISP
-
JAX
4h 40m
1 stop
Southwest Logo
4:05 pm - 10:10 pm
JAX
-
ISP
6h 05m
1 stop
$357Southwest
Wed, Apr 29 - Wed, May 6
Southwest Logo
12:30 pm - 9:15 pm
ISP
-
JAX
8h 45m
2 stops
Southwest Logo
7:45 am - 11:55 am
JAX
-
ISP
4h 10m
1 stop
$362Southwest
Mon, May 18 - Fri, May 22
Multiple Airlines Logo
2:28 pm - 8:38 am
ISP
-
JAX
18h 10m
1 stop
Multiple Airlines Logo
11:01 am - 5:29 pm
JAX
-
ISP
30h 28m
2 stops
$365Multiple Airlines
Sat, May 23 - Wed, May 27
Southwest Logo
4:40 pm - 9:55 pm
ISP
-
JAX
5h 15m
1 stop
Southwest Logo
7:45 am - 1:50 pm
JAX
-
ISP
6h 05m
1 stop
$366Southwest
Booking Insights

KAYAK's insights & trends for Islip to Jacksonville flights

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

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

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Islip to Jacksonville, 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 Islip to Jacksonville is February, where tickets cost $227 (return) on average. On the other hand, the most expensive months are March and September, where the average cost of round-trip tickets is $666 and $516 respectively.

Good to know

Low seasonNovember
Cheapest flight$167
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly and prices are also 18% lower on average.
Flight from Islip to Jacksonville

When to book flights from Islip to Jacksonville

Are your dates flexible? Find out the best times to travel from Islip to Jacksonville 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 Islip to Jacksonville

  • What is the cheapest flight from Islip to Jacksonville?

    In the last 3 days, the lowest price for a flight from Islip to Jacksonville was $167 for a one-way ticket and $321 for a round-trip.

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

    A passport is not required to fly from Islip to Jacksonville.

  • Which airports will I be using when flying from Islip to Jacksonville?

    Islip and Jacksonville are both served by 1 main airport. You will leave Islip from Islip Long Island and will be arriving at Jacksonville.

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

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

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

    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 Islip to Jacksonville.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Jacksonville from Islip 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 Islip to Jacksonville?

    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 Jacksonville with an airline and back to Islip with another airline. Booking your flights between Islip and JAX 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 Islip to Jacksonville?

    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 Jacksonville from Islip up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Islip to Jacksonville

 
See real verified KAYAK customer reviews for airlines flying from Islip to Jacksonville. 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 Islip to Jacksonville? 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 4332 reviews
7.5Entertainment
8.6Crew
8.1Boarding
8.0Comfort
7.0Food
Airline reviews

It was good from LAX to Phoenix, But the connection in Phoenix to Tulsa was not that great. The staff on both flights were great. The choice of free entertainment was ok nothing to brag about. The 45 min delay because of some electrical issue wasn't great from Phoenix to Tulsa. We sat there with hardly any air, The seat I had was between windows so the side of the plane pushed in on you. My being a bigger man it then made the seating area uncomfortable. The seats on the plane had no power to connect to recharge your phone or anything. I would recommend that they should look into a slot or clamp to hold your phone to enjoy while watching the entertainment choices hands-free. Also make it possible to raise the inner seat by the window be able to raise the arm rest up to make more room for larger people to set more comfortably. I would also say other then that stop price gouging the airfare or nickel and diming everything. Not fair for people having to fly for emergencies and be paying for higher prices due to the season or holidays. Your making your money either way and the cost of flying is still going to be the same regardless if there's 100 people or 200 people.

6.0 GoodAnthony & Kathy, Mar 2026
PHX - TUL
Read more Southwest reviews

It was good from LAX to Phoenix, But the connection in Phoenix to Tulsa was not that great. The staff on both flights were great. The choice of free entertainment was ok nothing to brag about. The 45 min delay because of some electrical issue wasn't great from Phoenix to Tulsa. We sat there with hardly any air, The seat I had was between windows so the side of the plane pushed in on you. My being a bigger man it then made the seating area uncomfortable. The seats on the plane had no power to connect to recharge your phone or anything. I would recommend that they should look into a slot or clamp to hold your phone to enjoy while watching the entertainment choices hands-free. Also make it possible to raise the inner seat by the window be able to raise the arm rest up to make more room for larger people to set more comfortably. I would also say other then that stop price gouging the airfare or nickel and diming everything. Not fair for people having to fly for emergencies and be paying for higher prices due to the season or holidays. Your making your money either way and the cost of flying is still going to be the same regardless if there's 100 people or 200 people.

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

Love them will get a Southwest card to track my points and keep flying with them. My family and I were pleased with the services.

We had a 5 hour delay on the tarmac in Baltimore

It was canceled. Supposedly weather. But there was no snow in Baltimore. At least we found out before driving to airport

Okay, not wonderful. Short flight. Wi-fi didn't work properly. Stuck waiting for a gate to open upon arrival for 20 or so minutes.

They sent a notice that they were boarding an hour early. We had to leave the club and run to the gate. They said sorry, that came from corporate and was a mistake. They did not have enough seating because the flight before it had not taken off on time. They moved our gate and delayed it for an hour.

Airline travel is always too cramped to really be pleasant, but the cabin crew on this flight did a pretty good job of making up for it by putting on some music during boarding and sprinkling a few funny remarks into the safety briefing and announcements, and just generally being friendly and helpful. It definitely reminded me of why I prefer the in-flight experience on Southwest!

Flight was delayed due to plane not passing inspection And one of the crew had to time out and we had to wait for another one A 3 hour delay

The quality of Southwest Airlines continues to degrade each time I fly with them. If it were not for the free luggage, I would probably choose another airline. Their prices are a little bit competitive, but way too high for the quality of the service. Southwest is not unique in this way. Domestic flight in the United States of America has continued to be a lower and lower quality product. Very sad when you compare the quality of domestic airlines to that of many international airlines around the world.

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

Information on your arrival and departure airports