HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Islip

$121+ 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 5/7. Fares are subject to change and may not be available on all flights or dates of travel.
JAX — ISP
Apr 4 — Apr 111
Sat 4/4
Sat 4/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Jacksonville to Islip with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 March 5, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/63:31 pm
JAX
-
ISP
1 stop3h 36m
Breeze Airways
Tue 8/1111:56 am
ISP
-
JAX
1 stop8h 08m
Breeze Airways
Deal found 3/1$272
This Kiwi.com deal was found by Cheapflights users on 3/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/283:05 pm
JAX
-
ISP
1 stop4h 02m
Breeze Airways
Sun 5/317:47 pm
ISP
-
JAX
1 stop13h 10m
Breeze Airways
Deal found 3/2$314
This Kiwi.com deal was found by Cheapflights users on 3/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/46:49 pm
JAX
-
ISP
2 stops40h 28m
Multiple Airlines
Sun 5/107:53 pm
ISP
-
JAX
1 stop13h 04m
Multiple Airlines
Deal found 3/1$317
This Kiwi.com deal was found by Cheapflights users on 3/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/282:08 pm
JAX
-
ISP
2 stops23h 20m
Multiple Airlines
Sun 5/317:47 pm
ISP
-
JAX
1 stop13h 10m
Multiple Airlines
Deal found 3/2$326
This Southwest deal was found by Cheapflights users on 3/2. 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.
Wed 5/611:50 am
JAX
-
ISP
1 stop6h 40m
Southwest
Wed 5/136:30 am
ISP
-
JAX
1 stop4h 35m
Southwest
Deal found 3/2$337
This Kiwi.com deal was found by Cheapflights users on 3/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/292:57 pm
JAX
-
ISP
2 stops18h 11m
Multiple Airlines
Sun 5/317:47 pm
ISP
-
JAX
1 stop13h 10m
Multiple Airlines
Deal found 3/2$354
This Southwest deal was found by Cheapflights users on 3/3. 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.
Sat 5/910:55 am
JAX
-
ISP
1 stop5h 05m
Southwest
Mon 5/116:00 am
ISP
-
JAX
1 stop4h 15m
Southwest
Deal found 3/3$355
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/58:47 am
JAX
-
ISP
2 stops24h 21m
Multiple Airlines
Sun 6/77:47 pm
ISP
-
JAX
1 stop13h 10m
Multiple Airlines
Deal found 3/3$356

Find 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 March 5, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$272
(Kiwi.com)

One-way from

$121
(CheapOair)

Popular in

February

Cheapest in

October

Average price

$646
Provider with most accurate pricing for Jacksonville-Islip Long Island flight deals.
Search Deals
Provider most trusted by Cheapflights users for Jacksonville-Islip Long Island flights.
Search Deals
From Jacksonville to Islip Long Island
Search Deals
One-way flight from Jacksonville to Islip Long Island
Search Deals
Highest demand for flights based on searches. 34% potential increase in price ($246 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease ($45 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 March 5, 2026.
Use the filters below to find and compare flights from Jacksonville to Islip that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

JacksonvilleIslip

JAX - ISP

JAXISP

Jacksonville

Wed 5/6

1:15 pm-10:10 pm

2 stops8h 55m

Islip Long Island

Wed 5/13

12:30 pm-9:30 pm

2 stops9h 00m

$347

JacksonvilleIslip

JAX - ISP

JAXISP

Jacksonville

Sat 5/9

6:35 pm-11:20 pm

1 stop4h 45m

Islip Long Island

Mon 5/11

6:00 am-2:45 pm

2 stops8h 45m

$360

JacksonvilleIslip

JAX - ISP

JAXISP

Jacksonville

Mon 5/4

5:00 pm-11:30 pm

1 stop6h 30m

Islip Long Island

Sun 5/10

6:05 am-10:15 am

1 stop4h 10m

$371

JacksonvilleIslip

JAX - ISP

JAXISP

Jacksonville

Wed 7/22

7:55 am-1:45 pm

1 stop5h 50m

Islip Long Island

Mon 7/27

12:30 pm-8:10 pm

1 stop7h 40m

$379
Quickest round-trip

JacksonvilleIslip

JAX - ISP

JAXISP

Jacksonville

Sat 7/11

7:20 am-11:35 am

1 stop4h 15m

Islip Long Island

Mon 7/13

9:10 am-1:35 pm

1 stop4h 25m

$387

JacksonvilleIslip

JAX - ISP

JAXISP

Jacksonville

Fri 5/1

3:25 pm-11:30 pm

2 stops8h 05m

Islip Long Island

Sun 5/3

11:50 am-3:50 pm

1 stop4h 00m

$392
Cheapest one-way

JacksonvilleIslip

JAX - ISP

JAXISP

Jacksonville

Sun 5/10

12:07 pm-6:06 pm

1 stop5h 59m

$125
Quickest one-way

JacksonvilleIslip

JAX - ISP

JAXISP

Jacksonville

Thu 6/25

3:05 pm-7:07 pm

1 stop4h 02m

$159

JacksonvilleIslip

JAX - ISP

JAXISP

Jacksonville

Sun 5/10

9:03 pm-1:18 pm

3 stops40h 15m

$172

JacksonvilleIslip

JAX - ISP

JAXISP

Jacksonville

Sun 5/10

6:08 pm-9:13 am

2 stops15h 05m

$177

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/2

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

Compare providers for flights from Jacksonville to Islip

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Jacksonville to Islip in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Jacksonville-Islip, New York flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Jacksonville-Islip, New York flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Jacksonville-Islip, New York flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Jacksonville-Islip, New York flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Jacksonville-Islip, New York flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 $63). Flying from Jacksonville to Islip, New York in December is currently the most expensive (average of $133). 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.

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 March 5, 2026.
Get a feel of what it's like to fly with Southwest and JetBlue 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.
Southwest
8.0
Very good
4,308 reviews

Comfort

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..
Southwest
8.0
Very good
4,308 reviews
Southwest
8.0
Very good
4,308 reviews

Comfort

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..
JetBlue
7.2
Good
2,896 reviews
Southwest
8.0
Very good
4,308 reviews

Comfort

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..

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.

  • How long is the flight from Jacksonville to Islip, New York?

    Departing from Jacksonville to Islip, New York will take you 8h 55m. There are 858 mi between Jacksonville and Islip, New York.

  • 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 $262. Another airline that can offer you cheap pricing is JetBlue. Users have found that Southwest is 43% 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 $63). Flying from Jacksonville to Islip, New York in December is currently the most expensive (average of $133). 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 Islip?

Book flights to Islip if you plan to visit one of these locations
Riverhead

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Jacksonville to Islip

See prices for flight routes from nearby airports that may be better suited for you.
Miami to John F Kennedy Intl flights
Miami to Newark flights
Fort Lauderdale to Newark flights
Orlando to John F Kennedy Intl flights
Fort Lauderdale to John F Kennedy Intl flights
Miami to LaGuardia flights
Fort Lauderdale to LaGuardia flights
Tampa to Newark flights
Orlando to LaGuardia flights
Tampa to LaGuardia flights
West Palm Beach to Newark flights
Tampa to John F Kennedy Intl flights
Orlando to Newark flights
West Palm Beach to John F Kennedy Intl flights
Jacksonville to Newark flights
Fort Myers to Newark flights
West Palm Beach to LaGuardia flights
Jacksonville to John F Kennedy Intl flights
Jacksonville to LaGuardia flights
Fort Myers to LaGuardia flights
Sarasota to Newark flights
Sarasota to John F Kennedy Intl flights
Orlando to White Plains flights
Fort Myers to John F Kennedy Intl flights
Pensacola to LaGuardia flights
Orlando to Buffalo flights
Sarasota to LaGuardia flights
Tampa to White Plains flights
Orlando to Islip flights
Fort Lauderdale to Stewart flights
Pensacola to Newark flights
Orlando to Albany flights
Fort Lauderdale to White Plains flights
Orlando to Stewart flights
West Palm Beach to Islip flights
Tampa to Buffalo flights
West Palm Beach to White Plains flights
Tampa to Islip flights
Fort Lauderdale to Islip flights
Orlando to Rochester flights
Orlando to Syracuse flights
Daytona Beach to John F Kennedy Intl flights
Fort Lauderdale to Buffalo flights
Tampa to Stewart flights
Fort Myers to Islip flights
Miami to White Plains flights
Fort Myers to White Plains flights
Panama City to John F Kennedy Intl flights
Panama City to LaGuardia flights

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 March 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$262Average$396FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$287Average$417FlexibilityNo cancel feeOn-time62%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.