HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Jacksonville

$130+ Cheap flights from Islip, NY to Jacksonville (ISP - JAX)

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 1/4. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — JAX
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Islip to Jacksonville 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.

Find flight deals from Islip to Jacksonville

Cheapest flights from Islip to Jacksonville
Explore the most affordable flight options available from Islip to Jacksonville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 6, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Wed 12/36:00 amISP - JAX
2 stops30h 31mMultiple Airlines
Wed 12/1010:33 amJAX - ISP
1 stop23h 25mMultiple Airlines
Deal found 11/5$241
This Kiwi.com deal was found by Cheapflights users on 11/4. 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.
Sun 11/162:19 pmISP - JAX
1 stop23h 35mMultiple Airlines
Sat 11/2210:59 amJAX - ISP
2 stops45h 03mMultiple Airlines
Deal found 11/4$277
This Kiwi.com deal was found by Cheapflights users on 11/4. 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.
Sun 11/162:19 pmISP - JAX
1 stop23h 35mBreeze Airways
Thu 11/202:25 pmJAX - ISP
1 stop4h 31mBreeze Airways
Deal found 11/4$287
This Kiwi.com deal was found by Cheapflights users on 11/4. 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.
Wed 11/198:45 pmISP - JAX
2 stops13h 53mBreeze Airways
Thu 11/202:25 pmJAX - ISP
1 stop4h 31mBreeze Airways
Deal found 11/4$312
This Kiwi.com deal was found by Cheapflights users on 11/4. 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.
Sun 11/162:19 pmISP - JAX
1 stop23h 35mMultiple Airlines
Fri 11/219:38 amJAX - ISP
2 stops22h 24mMultiple Airlines
Deal found 11/4$325
This Kiwi.com deal was found by Cheapflights users on 11/4. 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.
Sun 11/167:36 pmISP - JAX
1 stop13h 22mMultiple Airlines
Thu 11/209:07 pmJAX - ISP
2 stops34h 55mMultiple Airlines
Deal found 11/4$337
This Kiwi.com deal was found by Cheapflights users on 11/4. 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.
Sun 11/162:19 pmISP - JAX
1 stop23h 35mMultiple Airlines
Wed 11/192:52 pmJAX - ISP
2 stops18h 15mMultiple Airlines
Deal found 11/4$338
This Southwest deal was found by Cheapflights users on 11/5. 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.
Thu 12/412:55 pmISP - JAX
1 stop7h 20mSouthwest
Mon 12/87:00 amJAX - ISP
1 stop5h 15mSouthwest
Deal found 11/5$355
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 11/207:36 pmISP - JAX
1 stop13h 22mMultiple Airlines
Sat 11/228:06 pmJAX - ISP
2 stops14h 03mMultiple Airlines
Deal found 11/4$390
This Southwest deal was found by Cheapflights users on 11/4. 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.
Fri 12/512:55 pmISP - JAX
1 stop4h 40mSouthwest
Sun 12/71:15 pmJAX - ISP
1 stop3h 40mSouthwest
Deal found 11/4$397

Cheap flight deals from Islip to Jacksonville

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Jacksonville (JAX). 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 November 6, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$241
(Kiwi.com)

One-way from

$130
(Kiwi.com)

Popular in

March

Cheapest in

July

Average price

$491
Provider with most accurate pricing for Islip Long Island-Jacksonville flight deals.
Search Deals
Provider most trusted by Cheapflights users for Islip Long Island-Jacksonville flights.
Search Deals
From Islip Long Island to Jacksonville
Search Deals
One-way flight from Islip Long Island to Jacksonville
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($43 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Islip to Jacksonville 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 November 6, 2025.
Use the filters below to find and compare flights from Islip to Jacksonville that are best for you.

Fly from

Islip

Fly to

Jacksonville

Route

Depart

Return

Price

IslipJacksonville

ISP - JAX

ISPJAX

Islip Long Island

Wed 12/3

6:00 am-12:31 pm

2 stops30h 31m

Jacksonville

Wed 12/10

10:33 am-9:58 am

1 stop23h 25m

$241

IslipJacksonville

ISP - JAX

ISPJAX

Islip Long Island

Sat 2/21

5:30 am-10:40 am

1 stop5h 10m

Jacksonville

Sat 2/28

7:10 am-12:05 pm

1 stop4h 55m

$355

IslipJacksonville

ISP - JAX

ISPJAX

Islip Long Island

Thu 12/4

12:55 pm-8:15 pm

1 stop7h 20m

Jacksonville

Mon 12/8

7:00 am-12:15 pm

1 stop5h 15m

$355

IslipJacksonville

ISP - JAX

ISPJAX

Islip Long Island

Sat 12/13

6:00 am-10:40 am

1 stop4h 40m

Jacksonville

Mon 12/15

7:00 am-12:15 pm

1 stop5h 15m

$355

IslipJacksonville

ISP - JAX

ISPJAX

Islip Long Island

Sun 12/7

5:50 am-12:20 pm

1 stop6h 30m

Jacksonville

Tue 12/9

7:00 am-12:15 pm

1 stop5h 15m

$363

IslipJacksonville

ISP - JAX

ISPJAX

Islip Long Island

Sat 12/20

6:00 am-2:41 pm

2 stops32h 41m

$143

IslipJacksonville

ISP - JAX

ISPJAX

Islip Long Island

Sun 1/4

11:40 am-4:27 pm

3 stops28h 47m

$162

IslipJacksonville

ISP - JAX

ISPJAX

Islip Long Island

Sun 12/21

8:35 pm-4:27 pm

2 stops19h 52m

$173

IslipJacksonville

ISP - JAX

ISPJAX

Islip Long Island

Sun 11/16

8:49 am-6:43 pm

2 stops33h 54m

$173

IslipJacksonville

ISP - JAX

ISPJAX

Islip Long Island

Mon 1/5

5:50 am-12:20 pm

1 stop6h 30m

$178

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/5

Showing 1-10 of 16 results
1
2

Compare providers for flights from Islip to Jacksonville

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 Islip to Jacksonville in November.
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 Islip, New York-Jacksonville flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Islip, New York-Jacksonville flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Islip, New York-Jacksonville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Islip, New York-Jacksonville 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 Islip, New York-Jacksonville 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 Islip to Jacksonville

Have a flexible travel schedule? Discover the best time to fly to Jacksonville from Islip 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 Islip to Jacksonville

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

Currently, February is the cheapest month in which you can book a flight from Islip, New York to Jacksonville (average of $68). Flying from Islip, New York to Jacksonville in December is currently the most expensive (average of $143). 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 ISP to JAX?

Find hourly flight availability from Islip to Jacksonville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 6, 2025.

A simple way to save on the total cost of your ticket is to fly from Islip, New York to Jacksonville at noon. If you’re flexible enough to do this you can expect to save up to 22% on your trip compared to booking a flight in the evening.

Reviews of airlines servicing Jacksonville

Get insights into the airlines that provide service to Jacksonville. 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 Jacksonville. Reviews last updated November 6, 2025.
Read through reviews of airlines operating flights from Islip to Jacksonville, such as Southwest. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,241 reviews

Food

7.0

Comfort

8.0

Boarding

8.1

Overall

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Food

7.0

Comfort

8.0

Boarding

8.1

Overall

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Islip to Jacksonville. 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 Islip, New York to Jacksonville?

    A quick flight from Islip, New York to Jacksonville can take about 5h 10m. Southwest provides one of the quickest options available for as low as $355. Airlines will cover a distance of 858 mi.

  • What is the cheapest airline to fly from Islip, New York to Jacksonville round-trip?

    Currently priced at $302, Southwest will fly you from Islip, New York to Jacksonville and back. In addition to Southwest, many other airlines offer competitively priced options for your trip. Southwest is 28% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Islip to Jacksonville 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 Islip, New York to Jacksonville?

    Currently, February is the cheapest month in which you can book a flight from Islip, New York to Jacksonville (average of $68). Flying from Islip, New York to Jacksonville in December is currently the most expensive (average of $143). 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?

Book flights to Jacksonville if you plan to visit one of these locations
Jacksonville Beach
Orange Park
Fernandina Beach
Kingsland
Waycross

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 Islip to Jacksonville

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

Top airline flying from Islip to Jacksonville

Discover the top airline that operate flights from Islip to Jacksonville. 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 November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$302Average$406FlexibilityNo cancel feeOn-time63%

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.