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Islip

$106+ 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
May 4 — May 111
Mon 5/4
Mon 5/11
1 adult, Economy
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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 April 4, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/3. 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.
Tue 6/29:03 pm
JAX
-
ISP
1 stop14h 14m
Breeze Airways
Sat 6/611:57 am
ISP
-
JAX
1 stop20h 41m
Breeze Airways
Deal found 4/3$259
This Kiwi.com deal was found by Cheapflights users on 4/3. 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.
Tue 6/29:03 pm
JAX
-
ISP
1 stop14h 14m
Multiple Airlines
Sat 6/66:09 pm
ISP
-
JAX
2 stops24h 26m
Multiple Airlines
Deal found 4/3$276
This Kiwi.com deal was found by Cheapflights users on 4/1. 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.
Tue 5/199:03 pm
JAX
-
ISP
1 stop14h 14m
Breeze Airways
Sat 5/2311:57 am
ISP
-
JAX
1 stop20h 41m
Breeze Airways
Deal found 4/1$287
This Kiwi.com deal was found by Cheapflights users on 4/1. 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.
Tue 5/199:03 pm
JAX
-
ISP
1 stop14h 14m
Multiple Airlines
Sat 5/2311:57 am
ISP
-
JAX
2 stops30h 54m
Multiple Airlines
Deal found 4/1$331
This Southwest deal was found by Cheapflights users on 4/4. 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.
Tue 6/2311:05 am
JAX
-
ISP
1 stop4h 55m
Southwest
Tue 6/302:55 pm
ISP
-
JAX
1 stop5h 55m
Southwest
Deal found 4/4$335
This Kiwi.com deal was found by Cheapflights users on 4/1. 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.
Sun 6/79:03 pm
JAX
-
ISP
1 stop16h 25m
Multiple Airlines
Fri 6/1210:48 am
ISP
-
JAX
2 stops23h 04m
Multiple Airlines
Deal found 4/1$357
This Southwest deal was found by Cheapflights users on 4/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/191:15 pm
JAX
-
ISP
2 stops8h 55m
Southwest
Sat 5/239:20 am
ISP
-
JAX
2 stops9h 40m
Southwest
Deal found 4/1$365
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 4/305:51 pm
JAX
-
ISP
2 stops15h 22m
Multiple Airlines
Sun 5/39:01 pm
ISP
-
JAX
1 stop22h 46m
Multiple Airlines
Deal found 3/31$368
This Southwest deal was found by Cheapflights users on 3/31. 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 4/306:55 am
JAX
-
ISP
1 stop4h 55m
Southwest
Thu 4/304:30 pm
ISP
-
JAX
1 stop4h 55m
Southwest
Deal found 3/31$375
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 4/305:51 pm
JAX
-
ISP
1 stop19h 40m
Breeze Airways
Sun 5/39:01 pm
ISP
-
JAX
1 stop22h 46m
Breeze Airways
Deal found 3/31$376
This Southwest deal was found by Cheapflights users on 4/3. 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.
Mon 5/47:05 pm
JAX
-
ISP
1 stop4h 25m
Southwest
Sat 5/95:30 am
ISP
-
JAX
2 stops8h 40m
Southwest
Deal found 4/3$380

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 April 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$259
(Kiwi.com)

One-way from

$106
(Kiwi.com)

Popular in

March

Cheapest in

October

Average price

$460
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. 28% potential increase in price ($175 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 4, 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

Fri 6/26

2:15 pm-11:40 pm

2 stops9h 25m

Islip Long Island

Tue 6/30

2:55 pm-8:50 pm

1 stop5h 55m

$376

JacksonvilleIslip

JAX - ISP

JAXISP

Jacksonville

Sat 5/9

6:35 pm-11:20 pm

1 stop4h 45m

Islip Long Island

Mon 5/11

4:30 pm-10:55 pm

2 stops6h 25m

$380

JacksonvilleIslip

JAX - ISP

JAXISP

Jacksonville

Thu 6/25

7:30 pm-11:35 pm

1 stop4h 05m

Islip Long Island

Tue 6/30

2:55 pm-8:50 pm

1 stop5h 55m

$381

JacksonvilleIslip

JAX - ISP

JAXISP

Jacksonville

Tue 6/23

8:25 am-10:35 pm

2 stops14h 10m

Islip Long Island

Tue 6/30

9:00 am-9:05 pm

2 stops12h 05m

$403

JacksonvilleIslip

JAX - ISP

JAXISP

Jacksonville

Sun 6/7

6:55 am-11:45 am

1 stop4h 50m

Islip Long Island

Fri 6/12

9:10 am-1:35 pm

1 stop4h 25m

$407
Quickest round-trip

JacksonvilleIslip

JAX - ISP

JAXISP

Jacksonville

Fri 6/19

7:30 pm-11:35 pm

1 stop4h 05m

Islip Long Island

Sun 6/21

6:00 am-10:20 am

1 stop4h 20m

$417

JacksonvilleIslip

JAX - ISP

JAXISP

Jacksonville

Fri 5/1

10:55 am-4:30 pm

1 stop5h 35m

Islip Long Island

Sun 5/3

5:25 pm-10:10 pm

1 stop4h 45m

$417

JacksonvilleIslip

JAX - ISP

JAXISP

Jacksonville

Fri 4/24

10:55 am-4:30 pm

1 stop5h 35m

Islip Long Island

Sun 4/26

5:25 pm-10:10 pm

1 stop4h 45m

$427

JacksonvilleIslip

JAX - ISP

JAXISP

Jacksonville

Mon 5/4

3:25 pm-11:30 pm

2 stops8h 05m

Islip Long Island

Sat 5/9

5:30 am-2:10 pm

2 stops8h 40m

$429
Cheapest one-way
Quickest one-way

JacksonvilleIslip

JAX - ISP

JAXISP

Jacksonville

Thu 6/25

3:05 pm-7:09 pm

1 stop4h 04m

$161

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/4

Showing 1-10 of 19 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 April.
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 March is currently the most expensive (average of $153). 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.

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 April 4, 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
4,343 reviews

Boarding

8.1

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,343 reviews
Southwest
8.0
Very good
4,343 reviews

Boarding

8.1

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
JetBlue
7.2
Good
2,912 reviews
Southwest
8.0
Very good
4,343 reviews

Boarding

8.1

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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 14h 10m. 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 40% 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 March is currently the most expensive (average of $153). 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

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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 April 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$262Average$396FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$287Average$417FlexibilityNo cancel feeOn-time62%

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