HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Islip

$222+ 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 1/2. Fares are subject to change and may not be available on all flights or dates of travel.
JAX — ISP
ene. 11 — ene. 181
dom. 1/11
dom. 1/18
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 diciembre 12, 2025.

This Southwest deal was found by Cheapflights users on 12/10. 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.
mié. 12/315:50 pmJAX - ISP
1 stop4h 15mSouthwest
lun. 1/55:50 amISP - JAX
1 stop4h 35mSouthwest
Deal found 12/10$425
This Southwest deal was found by Cheapflights users on 12/9. 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.
mar. 12/307:50 pmJAX - ISP
1 stop4h 05mSouthwest
dom. 1/45:40 amISP - JAX
1 stop5h 40mSouthwest
Deal found 12/9$463
This Southwest deal was found by Cheapflights users on 12/9. 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.
mar. 12/237:50 pmJAX - ISP
1 stop4h 05mSouthwest
vie. 12/265:50 pmISP - JAX
1 stop4h 30mSouthwest
Deal found 12/9$737
This Gotogate deal was found by Cheapflights users on 12/9. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/2310:33 amJAX - ISP
2 stops33h 08mBreeze Airways
vie. 12/268:47 pmISP - JAX
2 stops40h 58mBreeze Airways
Deal found 12/9$1,023

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 diciembre 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$364
(Southwest)

One-way from

$171
(Southwest)

Popular in

January

Cheapest in

October

Average price

$359
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. 19% potential increase in price ($101 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 diciembre 12, 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. 3/16

7:35 pm-11:55 pm

1 stop4h 20m

Islip Long Island

lun. 3/23

6:00 am-10:30 am

1 stop4h 30m

$387

JacksonvilleIslip

JAX - ISP

JAXISP

Jacksonville

jue. 1/1

7:00 am-12:15 pm

1 stop5h 15m

Islip Long Island

lun. 1/5

10:55 am-4:20 pm

1 stop5h 25m

$425

JacksonvilleIslip

JAX - ISP

JAXISP

Jacksonville

mié. 12/31

5:50 pm-10:05 pm

1 stop4h 15m

Islip Long Island

lun. 1/5

5:50 am-10:25 am

1 stop4h 35m

$425

JacksonvilleIslip

JAX - ISP

JAXISP

Jacksonville

mar. 12/30

7:50 pm-11:55 pm

1 stop4h 05m

Islip Long Island

dom. 1/4

5:40 am-11:20 am

1 stop5h 40m

$463

JacksonvilleIslip

JAX - ISP

JAXISP

Jacksonville

vie. 1/2

5:05 pm-11:55 pm

1 stop6h 50m

Islip Long Island

dom. 1/4

5:40 am-11:20 am

1 stop5h 40m

$466

JacksonvilleIslip

JAX - ISP

JAXISP

Jacksonville

vie. 1/2

5:05 pm-11:55 pm

1 stop6h 50m

$222

JacksonvilleIslip

JAX - ISP

JAXISP

Jacksonville

vie. 1/2

8:26 pm-9:58 am

3 stops37h 32m

$355

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Jacksonville-Islip, New York flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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, March is the cheapest month in which you can book a flight from Jacksonville to Islip, New York (average of $68). Flying from Jacksonville to Islip, New York in January is currently the most expensive (average of $129). 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 diciembre 12, 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 20% on your trip compared to booking a flight in the evening.

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 diciembre 12, 2025.
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
7.9
Good
4,253 reviews

Food

7.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
7.9
Good
4,253 reviews
Southwest
7.9
Good
4,253 reviews

Food

7.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
JetBlue
7.2
Good
2,899 reviews
Southwest
7.9
Good
4,253 reviews

Food

7.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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 4h 15m. 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 $267. Another airline that can offer you cheap pricing is JetBlue. Users have found that Southwest is 36% 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, March is the cheapest month in which you can book a flight from Jacksonville to Islip, New York (average of $68). Flying from Jacksonville to Islip, New York in January is currently the most expensive (average of $129). 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
Fort Lauderdale to John F Kennedy Intl flights
Miami to LaGuardia flights
Orlando to John F Kennedy Intl flights
Fort Lauderdale to Newark flights
Orlando to Newark flights
Fort Lauderdale to LaGuardia flights
West Palm Beach to Newark flights
Miami to Newark flights
Orlando to LaGuardia flights
Tampa to LaGuardia flights
West Palm Beach to John F Kennedy Intl flights
Tampa to John F Kennedy Intl flights
Tampa to Newark flights
West Palm Beach to LaGuardia flights
Jacksonville to LaGuardia flights
Jacksonville to John F Kennedy Intl flights
Fort Myers to Newark flights
Jacksonville to Newark flights
Fort Myers to John F Kennedy Intl flights
Orlando to Stewart flights
Sarasota to John F Kennedy Intl flights
Fort Myers to LaGuardia flights
Orlando to White Plains flights
Orlando to Islip flights
West Palm Beach to Islip flights
Fort Lauderdale to Islip flights
Sarasota to Newark flights
Orlando to Buffalo flights
Sarasota to LaGuardia flights
Tampa to Islip flights
Fort Lauderdale to White Plains flights
Fort Lauderdale to Stewart flights
West Palm Beach to White Plains flights
Pensacola to LaGuardia flights
Orlando to Syracuse flights
Fort Myers to White Plains flights
Fort Lauderdale to Buffalo flights
Orlando to Albany flights
Tampa to White Plains flights
Tampa to Buffalo flights
Fort Lauderdale to Albany flights
Panama City to John F Kennedy Intl flights
Pensacola to Newark flights
Gainesville to John F Kennedy Intl flights
Daytona Beach to John F Kennedy Intl flights
Pensacola to John F Kennedy Intl flights
Orlando to Rochester flights
Panama City to LaGuardia flights
Gainesville 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 diciembre 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$267Average$386FlexibilityNo 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.