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$124+ Cheap flights from Jacksonville to Islip, NY (JAX - ISP)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
JAX — ISP
jul. 8 — jul. 151
mar. 7/8
mar. 7/15
1 adult, Economy
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Cheap flight deals from Jacksonville to Islip

Discover tips and strategies to find the most affordable flight options for your journey from Jacksonville (JAX) to Islip (ISP). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated julio 3, 2025.

Round-trip from

$237
(Southwest)

One-way from

$124
(Southwest)

Popular in

January

Cheapest in

May

Average price

$416
From Jacksonville to Islip Long Island
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One-way flight from Jacksonville to Islip Long Island
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Highest demand for flights based on searches. 12% potential increase in price ($63 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Jacksonville to Islip

Cheapest flights from Jacksonville to Islip
Explore the most affordable flight options available from Jacksonville to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 3, 2025.

This Southwest deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/156:25 pmJAX - ISP
1 stop4h 30mSouthwest
lun. 9/223:05 pmISP - JAX
1 stop6h 05mSouthwest
Deal found 7/2$237
This FlightHub deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/412:38 pmJAX - ISP
2 stops20h 26mFrontier
dom. 9/711:25 amISP - JAX
2 stops28h 30mFrontier
Deal found 7/2$345
This FlightHub deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/45:48 pmJAX - ISP
1 stop19h 57mBreeze Airways
dom. 9/72:19 pmISP - JAX
1 stop23h 35mBreeze Airways
Deal found 7/2$463
This FlightHub deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/244:31 pmJAX - ISP
2 stops18h 06mMultiple Airlines
dom. 10/262:19 pmISP - JAX
1 stop23h 35mMultiple Airlines
Deal found 7/2$475

Cheapflights Fare Finder

Customize your flight search to find flights from Jacksonville to Islip that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated julio 3, 2025.
Use the filters below to find and compare flights from Jacksonville to Islip that are best for you.

Fly from

Jacksonville

Fly to

Islip

Route

Depart

Return

Price

JacksonvilleIslip

JAX - ISP

JAXISP

Jacksonville

lun. 9/15

6:25 pm-10:55 pm

1 stop4h 30m

Islip Long Island

lun. 9/22

3:05 pm-9:10 pm

1 stop6h 05m

$237

JacksonvilleIslip

JAX - ISP

JAXISP

Jacksonville

jue. 9/4

12:38 pm-9:04 am

2 stops20h 26m

Islip Long Island

dom. 9/7

11:25 am-3:55 pm

2 stops28h 30m

$345

JacksonvilleIslip

JAX - ISP

JAXISP

Jacksonville

jue. 9/4

5:48 pm-1:45 pm

1 stop19h 57m

Islip Long Island

dom. 9/7

2:19 pm-1:54 pm

1 stop23h 35m

$463

JacksonvilleIslip

JAX - ISP

JAXISP

Jacksonville

vie. 10/24

4:31 pm-10:37 am

2 stops18h 06m

Islip Long Island

dom. 10/26

2:19 pm-1:54 pm

1 stop23h 35m

$475

JacksonvilleIslip

JAX - ISP

JAXISP

Jacksonville

lun. 8/18

7:20 am-4:30 pm

2 stops9h 10m

$124

JacksonvilleIslip

JAX - ISP

JAXISP

Jacksonville

lun. 12/15

9:31 pm-11:15 am

2 stops37h 44m

$432

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Best time to book a flight from Jacksonville to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Jacksonville with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Jacksonville to Islip, New York?

Currently, January is the cheapest month in which you can book a flight from Jacksonville to Islip, New York (average of $108). Flying from Jacksonville to Islip, New York in November is currently the most expensive (average of $213). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from JAX to ISP?

Find hourly flight availability from Jacksonville to Islip. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 3, 2025.

A simple way to save on the total cost of your ticket is to fly from Jacksonville to Islip, New York at noon. If you’re flexible enough to do this you can expect to save up to 21% on your trip compared to booking a flight in the evening.

How much does it cost to fly round-trip from Jacksonville to Islip, New York?

Reviews of airlines servicing Islip

Get insights into the airlines that provide service to Islip. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Islip. Reviews last updated julio 3, 2025.
Get a feel of what it's like to fly with Breeze Airways, Southwest, and Frontier from Jacksonville to Islip by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Breeze Airways
8.1
Very good
183 reviews

Boarding

8.3

Entertainment

6.6

Comfort

8.2

Food

6.8

Overall

8.1

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Breeze Airways
8.1
Very good
183 reviews
Breeze Airways
8.1
Very good
183 reviews

Boarding

8.3

Entertainment

6.6

Comfort

8.2

Food

6.8

Overall

8.1

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Southwest
8.0
Very good
4,266 reviews
Breeze Airways
8.1
Very good
183 reviews

Boarding

8.3

Entertainment

6.6

Comfort

8.2

Food

6.8

Overall

8.1

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Frontier
5.9
Fair
3,286 reviews
Breeze Airways
8.1
Very good
183 reviews

Boarding

8.3

Entertainment

6.6

Comfort

8.2

Food

6.8

Overall

8.1

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!

Related info for your journey

Find useful and relevant information for your journey from Jacksonville to Islip. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Jacksonville to Islip, New York round-trip?

    Cheapflights users have booked flights from Jacksonville to Islip, New York round-trip from $237. Other airlines that can offer you cheap pricing are Frontier, from $345, and Breeze Airways, from $463. Users have found that Southwest is 47% cheaper than the other options available to this destination.

  • Can I find deals for flights from Jacksonville to Islip that include hotel bookings?

    Yes. In addition to deals on Jacksonville to Islip flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Jacksonville to Islip?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Jacksonville to Islip.

  • Can I find deals for business class flights from Jacksonville to Islip?

    Yes. Cheapflights offers flight deals from Jacksonville to Islip by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Jacksonville to Islip, New York?

    Currently, January is the cheapest month in which you can book a flight from Jacksonville to Islip, New York (average of $108). Flying from Jacksonville to Islip, New York in November is currently the most expensive (average of $213). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Jacksonville?

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Southampton
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Alternative routes for Jacksonville to Islip

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Top 2 airlines flying from Jacksonville to Islip

Discover the top 2 airlines that operate flights from Jacksonville to Islip. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated julio 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Breeze AirwaysCheapest$234Average$416FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$302Average$383FlexibilityNo cancel feeOn-time63%

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