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ISP - JAX

$109 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 4/22. 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

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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Cheap Flight Deals 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.

Recent round-trip flight deals from Islip to Jacksonville

KAYAK's recommended round-trip deals from the most popular airlines that fly from Islip to Jacksonville.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
6:00 am - 11:54 amISP-JAX
5h 54m1 stop
12:45 pm - 9:40 pmJAX-ISP
8h 55m1 stop
$307JetBlue
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Sat, Sep 6 - Sat, Sep 13
6:10 am - 10:55 amISP-JAX
4h 45m1 stop
5:30 am - 4:25 pmJAX-ISP
10h 55m2 stops
$328Southwest
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Wed, Apr 30 - Mon, May 5
1:00 pm - 9:25 pmISP-JAX
8h 25m2 stops
5:30 am - 4:25 pmJAX-ISP
10h 55m2 stops
$333Southwest
Find Deal
Wed, Apr 30 - Mon, May 5
6:10 am - 10:55 amISP-JAX
4h 45m1 stop
6:30 am - 11:10 amJAX-ISP
4h 40m1 stop
$335Southwest
Find Deal
Wed, Apr 30 - Mon, May 5
1:00 pm - 9:55 pmISP-JAX
8h 55m1 stop
6:35 am - 11:40 amJAX-ISP
5h 05m1 stop
$360Southwest
Find Deal
Thu, May 8 - Sat, May 10
1:00 pm - 9:55 pmISP-JAX
8h 55m1 stop
2:10 pm - 10:55 pmJAX-ISP
8h 45m2 stops
$366Southwest
Find Deal
Thu, May 8 - Sat, May 10
4:00 pm - 8:40 pmISP-JAX
4h 40m1 stop
7:40 pm - 11:50 pmJAX-ISP
4h 10m1 stop
$367Southwest
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Tue, Aug 5 - Sun, Aug 10
7:39 pm - 6:44 pmISP-JAX
23h 05m1 stop
9:28 am - 6:59 pmJAX-ISP
9h 31m1 stop
$760Breeze Airways
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Thu, May 29 - Sun, Jun 1
12:56 pm - 6:17 pmISP-JAX
5h 21m1 stop
9:32 pm - 10:11 amJAX-ISP
12h 39m1 stop
$847Breeze Airways
Find Deal
Fri, Apr 11 - Sat, Apr 26
12:56 pm - 6:17 pmISP-JAX
5h 21m1 stop
8:34 pm - 1:55 pmJAX-ISP
17h 21m2 stops
$904Breeze Airways
Find Deal
Fri, Apr 11 - Fri, Apr 25

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.

What’s the cheapest day of the week to fly from Islip to Jacksonville?

The average price of all round-trip flights from Islip to Jacksonville clicked on KAYAK for each day over the last 12 months.
When flying from Islip to Jacksonville, you should consider leaving on a Saturday and avoid Tuesdays if you are looking for the best rates. For your return to Islip, you’ll find the best rates on Wednesdays and the most expensive ones on Mondays.

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 August, where tickets cost $315 (return) on average. On the other hand, the most expensive months are March and November, where the average cost of round-trip tickets is $646 and $556 respectively.
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Good to know

Low season

July

High season

April

Cheapest flight

$109
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly and prices are also 24% 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 $109 for a one-way ticket and $307 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.

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

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

  • 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.

See more FAQs

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 4273 reviews
7.6Entertainment
8.1Comfort
8.2Boarding
8.6Crew
7.1Food
Airline reviews

Short flight with plenty of open seats. Drinks and snacks were still provided even on such a short flight. <1 hr

10.0 ExcellentMatthew, Mar 2025BWI - CMH
Read more Southwest reviews

Short flight with plenty of open seats. Drinks and snacks were still provided even on such a short flight. <1 hr

I liked the crew member who gave flight instructions on "in case of a problem:. The seats are so small that only a young teenager could sit in middle seat.

Great experience flying Southwest. The crew was really kind and helpful, and very friendly with our toddler.

Excellent! Only question is how we check in at exactly 24 hours in advance and end up at the end of the B boarding group

It was 2 hours 45 minutes late, for no apparently clear reason.

It went well. Plane wasn't full. Will be great when assigned seating is in place

Excellent experience. WiFi worked on this leg of My trip

Flight was great, but golf bag never made it until later in the day. Even though I had a nonstop flight it was placed on a different one. They made it right with flight credits and I was able to get it the same day.

Pretty standard flight. We left late, but arrived early. The wifi entertainment is always nice. The free snacks and beverages are simple, but appreciated. I'm tall and the seats are an issue. I can deal with a short flight, but any longer, I have to find another airline where I know beforehand I have extra legroom.

The flight attendant was proactive in helping with placing carry on in overhead bins. This was the first time I had ever been offered help without asking or obviously struggling. Many on the flight were older people like myself and vertically challenged. I would hope this would be the norm on all flights.

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

Information on your arrival and departure airports

Jacksonville (JAX)
Islip (ISP)

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