ISP - JAX

$148 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 6/17. 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
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Everything you should know

Cheapest round-trip
$248
Typical prices: $513-$299
Breeze Airways
Sun 8/23Thu 8/27
ISP - JAX • 1 stop
Cheapest one-way
$148
Multiple Airlines
Wed 6/17
ISP - JAX • 2 stops
Top airlines
Cheapest • from $248 (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 $387 (round-trip)
Shortest trip • 4h 42m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 43% 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, Aug 23 - Thu, Aug 27
Breeze Airways Logo
7:49 pm - 8:57 am
ISP
-
JAX
13h 08m
1 stop
Breeze Airways Logo
3:31 pm - 7:09 pm
JAX
-
ISP
3h 38m
1 stop
$248Breeze Airways
Sun, Aug 23 - Thu, Aug 27
Multiple Airlines Logo
7:49 pm - 5:37 pm
ISP
-
JAX
21h 48m
2 stops
Multiple Airlines Logo
3:31 pm - 7:09 pm
JAX
-
ISP
3h 38m
1 stop
$269Multiple Airlines
Mon, Jun 1 - Thu, Jun 4
Breeze Airways Logo
2:28 pm - 8:38 am
ISP
-
JAX
18h 10m
1 stop
Breeze Airways Logo
3:05 pm - 7:09 pm
JAX
-
ISP
4h 04m
1 stop
$292Breeze Airways
Mon, Jun 1 - Thu, Jun 4
Multiple Airlines Logo
2:28 pm - 5:35 pm
ISP
-
JAX
27h 07m
2 stops
Multiple Airlines Logo
3:05 pm - 7:09 pm
JAX
-
ISP
4h 04m
1 stop
$294Multiple Airlines
Thu, Jun 4 - Tue, Jun 9
Multiple Airlines Logo
7:49 pm - 8:57 am
ISP
-
JAX
13h 08m
1 stop
Multiple Airlines Logo
6:28 pm - 8:57 pm
JAX
-
ISP
26h 29m
2 stops
$301Multiple Airlines
Sat, Jun 6 - Sat, Jun 13
Multiple Airlines Logo
11:57 am - 8:38 am
ISP
-
JAX
20h 41m
1 stop
Multiple Airlines Logo
6:28 pm - 7:09 pm
JAX
-
ISP
24h 41m
2 stops
$324Multiple Airlines
Thu, Jun 4 - Tue, Jun 9
Breeze Airways Logo
7:49 pm - 8:57 am
ISP
-
JAX
13h 08m
1 stop
Breeze Airways Logo
9:03 pm - 11:17 am
JAX
-
ISP
14h 14m
1 stop
$325Breeze Airways
Sat, Jun 6 - Sat, Jun 13
Multiple Airlines Logo
11:57 am - 8:38 am
ISP
-
JAX
20h 41m
1 stop
Multiple Airlines Logo
6:28 pm - 7:09 pm
JAX
-
ISP
24h 41m
2 stops
$327Multiple Airlines
Tue, Sep 22 - Sun, Sep 27
Breeze Airways Logo
12:00 pm - 3:15 pm
ISP
-
JAX
27h 15m
2 stops
Breeze Airways Logo
9:10 pm - 2:22 pm
JAX
-
ISP
17h 12m
1 stop
$335Breeze Airways
Sat, Oct 3 - Wed, Oct 7
Breeze Airways Logo
12:00 pm - 8:38 am
ISP
-
JAX
20h 38m
1 stop
Breeze Airways Logo
4:24 pm - 7:05 pm
JAX
-
ISP
26h 41m
1 stop
$336Breeze Airways
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 August.

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 April, where the average cost of round-trip tickets is $590 and $549 respectively.

Good to know

Low seasonNovember
Cheapest flight$148
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly with an average 8% increase in price.
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 $148 for a one-way ticket and $248 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 4291 reviews
7.5Entertainment
7.0Food
8.6Crew
8.0Comfort
8.1Boarding
Airline reviews

The checking experience in Orlando was terrible, almost missed the flight. Too many travelers and Southwest completely understaffed.

2.0 MediocreAnonymous, May 2026
MCO - MDW
Read more Southwest reviews

The checking experience in Orlando was terrible, almost missed the flight. Too many travelers and Southwest completely understaffed.

I'm glad it wasn't only 75% full because I could get a good seat

if I was good. Not happy that I have to pay extra money to get the seat I need for lake room, but I guess that’s a sign of the times.

Seats were very comfortable. They tilted back. Drinks and snacks were free and served 3 times. Attendants were awesome.

Plane was clean and comfortable. Flight attendants and gate staff were professional, friendly and efficient. Boarding and deplaning were orderly and efficient. All in all, the typical excellent Southwest experience.

Truly terrible. Will never willingly fly southwest again. Seats are worse than before they switched to assigned seating. One flight attendant was the opposite of helpful (rude, unhelpful, dismissive, and as my stranger seatmate said unprompted: a total prick). This caused me, 15 minutes into the flight, to book an alternate return flight home on a competing airline (first class 1.2k purchase instead of my existing planned flight) just so I would not have to ever be on that aircraft, with that terrible service person, with those horrific seats ever again.

The flight was okay. The pilots did an amazing job and kept us updated on the flight. The flight attendants were okay. They found time to be chatty with each other rather than focus on the guests. One of the attendants was a little less warm when asking about my bag I had on my lap that I was using during latter part of the mid- flight. Mind you, it was not the departure descent. I’m respectful to each and every attendant, it was the tone in her voice reminding me to place my carryon bag on the floor. I hope to have a better experience next time.

Terrible. Even though there’s assigned seating now, they are still the slowest boarding airline of anyone.

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

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

Information on your arrival and departure airports