$77+ Cheap flights from Islip, NY to Jacksonville (ISP - JAX)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/17. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — JAX
Dec 4 — Dec 111
Round-trip
1 adult, Economy
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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
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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 Islip to Jacksonville
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Cheapest flights from Islip to JacksonvilleExplore 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 4, 2026.
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 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 12/112:00 pm -
1 stop4h 26m
Sat 12/53:39 pm -
2 stops18h 38m
Deal found 11/1![Multiple Airlines logo]()
$339
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.
Wed 12/94:05 pm -
1 stop4h 30m
Wed 12/1610:45 am -
1 stop5h 30m
Deal found 11/4![Southwest logo]()
$386
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Tue 11/1712:00 pm -
1 stop4h 26m
Sat 11/218:31 pm -
1 stop22h 34m
Deal found 11/2![Breeze Airways logo]()
$397
This Southwest deal was found by Cheapflights users on 11/2. 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.
Thu 12/312:30 pm -
1 stop5h 50m
Tue 12/810:45 am -
1 stop5h 30m
Deal found 11/2![Southwest logo]()
$398
This Kiwi.com deal was found by Cheapflights users on 11/3. 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.
Thu 11/1910:57 am -
1 stop9h 31m
Sun 11/2212:54 pm -
1 stop4h 39m
Deal found 11/3![Breeze Airways logo]()
$401
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 11/1910:57 am -
1 stop9h 31m
Mon 11/234:03 pm -
2 stops23h 42m
Deal found 11/1![Multiple Airlines logo]()
$402
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.
Tue 12/86:05 am -
1 stop4h 20m
Tue 12/155:40 pm -
1 stop4h 05m
Deal found 11/4![Southwest logo]()
$403
This Southwest deal was found by Cheapflights users on 11/1. 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 12/14:05 pm -
1 stop4h 30m
Sat 12/57:55 am -
1 stop7h 00m
Deal found 11/1![Southwest logo]()
$426
Best flights from Islip to JacksonvilleDiscover carefully curated flight deals from Islip to Jacksonville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 4, 2026.
Discover carefully curated flight deals from Islip to Jacksonville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 4, 2026.
This Southwest deal was found by Cheapflights users on 11/2. 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.
Thu 2/49:20 am -
2 stops9h 05m
Mon 2/85:55 am -
2 stops10h 50m
Deal found 11/2![Southwest logo]()
$349
This Southwest deal was found by Cheapflights users on 11/3. 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.
Wed 12/96:30 am -
2 stops10h 30m
Wed 12/165:40 pm -
1 stop4h 05m
Deal found 11/3![Southwest logo]()
$391
This Southwest deal was found by Cheapflights users on 11/2. 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.
Thu 12/312:30 pm -
1 stop5h 50m
Tue 12/810:45 am -
1 stop5h 30m
Deal found 11/2![Southwest logo]()
$398
This Southwest deal was found by Cheapflights users on 11/3. 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.
Tue 12/156:05 am -
1 stop7h 10m
Tue 12/227:40 pm -
1 stop4h 10m
Deal found 11/3![Southwest logo]()
$403
This Southwest deal was found by Cheapflights users on 10/31. 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.
Wed 11/186:30 am -
2 stops10h 30m
Wed 12/23:45 pm -
1 stop6h 00m
Deal found 10/31![Southwest logo]()
$458
This Southwest deal was found by Cheapflights users on 10/31. 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.
Wed 3/105:45 am -
1 stop7h 15m
Mon 3/157:40 am -
1 stop4h 50m
Deal found 10/31![Southwest logo]()
$462
This Southwest deal was found by Cheapflights users on 10/30. 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 1/1810:45 am -
1 stop4h 05m
Mon 1/186:00 pm -
1 stop5h 40m
Deal found 10/30![Southwest logo]()
$464
Last-minute flights from Islip to JacksonvilleDiscover last-minute flight deals from Islip to Jacksonville. Data last updated November 4, 2026 and is based on user searches.
Discover last-minute flight deals from Islip to Jacksonville. Data last updated November 4, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Tue 11/1712:00 pm -
1 stop4h 26m
Sat 11/218:31 pm -
1 stop22h 34m
Deal found 11/2![Breeze Airways logo]()
$397
This Kiwi.com deal was found by Cheapflights users on 11/3. 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.
Thu 11/1910:57 am -
1 stop9h 31m
Sun 11/2212:54 pm -
1 stop4h 39m
Deal found 11/3![Breeze Airways logo]()
$401
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 11/1910:57 am -
1 stop9h 31m
Mon 11/234:03 pm -
2 stops23h 42m
Deal found 11/1![Multiple Airlines logo]()
$402
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 12/112:00 pm -
1 stop4h 26m
Sat 12/53:39 pm -
2 stops18h 38m
Deal found 11/1![Multiple Airlines logo]()
$339
This Southwest deal was found by Cheapflights users on 11/1. 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 12/14:05 pm -
1 stop4h 30m
Sat 12/57:55 am -
1 stop7h 00m
Deal found 11/1![Southwest logo]()
$426
This Southwest deal was found by Cheapflights users on 11/2. 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.
Thu 12/312:30 pm -
1 stop5h 50m
Tue 12/810:45 am -
1 stop5h 30m
Deal found 11/2![Southwest logo]()
$398
This Southwest deal was found by Cheapflights users on 11/3. 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.
Tue 12/86:30 am -
2 stops10h 30m
Tue 12/1510:45 am -
1 stop5h 30m
Deal found 11/3![Southwest logo]()
$408
This Southwest deal was found by Cheapflights users on 11/3. 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.
Wed 12/96:05 am -
1 stop4h 20m
Wed 12/165:40 pm -
1 stop4h 05m
Deal found 11/3![Southwest logo]()
$386
One-way flights from Islip to JacksonvilleSearch for one-way flight options from Islip to Jacksonville. Find affordable one-way fares based on user searches. Data last updated November 4, 2026.
Search for one-way flight options from Islip to Jacksonville. Find affordable one-way fares based on user searches. Data last updated November 4, 2026.
This CheapOair deal was found by Cheapflights users on 11/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1712:00 pm -
1 stop4h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Breeze Airways logo]()
$77
This CheapOair deal was found by Cheapflights users on 11/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1910:57 am -
1 stop9h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Breeze Airways logo]()
$107
This CheapOair deal was found by Cheapflights users on 10/31. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1012:00 pm -
1 stop4h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/31![Breeze Airways logo]()
$114
This CheapOair deal was found by Cheapflights users on 11/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/410:57 am -
1 stop11h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Breeze Airways logo]()
$117
This CheapOair deal was found by Cheapflights users on 11/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1710:57 am -
1 stop9h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Breeze Airways logo]()
$124
This CheapOair deal was found by Cheapflights users on 11/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/2810:57 am -
1 stop11h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Breeze Airways logo]()
$125
This CheapOair deal was found by Cheapflights users on 10/31. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/1010:57 am -
1 stop11h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/31![Breeze Airways logo]()
$133
Find 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 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $233 (Kiwi.com) |
One-way from | $77 (CheapOair) |
Popular in | October |
Cheapest in | February |
Average price | $364 |
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 7,457,451 searches. Data last updated November 4, 2026.
Use the filters below to find and compare flights from Islip to Jacksonville that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
IslipJacksonville
ISP Islip Long Island - JAX Jacksonville
ISPJAX
Islip Long Island
Tue 11/10
12:00 pm-4:26 pm
1 stop4h 26m
Jacksonville
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$118
IslipJacksonville
ISP Islip Long Island - JAX Jacksonville
ISPJAX
Islip Long Island
Thu 12/17
10:57 am-8:28 pm
1 stop9h 31m
Jacksonville
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$124
IslipJacksonville
ISP Islip Long Island - JAX Jacksonville
ISPJAX
Islip Long Island
Wed 12/16
4:05 pm-8:35 pm
1 stop4h 30m
Jacksonville
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$170
IslipJacksonville
ISP Islip Long Island - JAX Jacksonville
ISPJAX
Islip Long Island
Wed 2/10
12:30 pm-8:45 pm
2 stops8h 15m
Jacksonville
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$175
IslipJacksonville
ISP Islip Long Island - JAX Jacksonville
ISPJAX
Islip Long Island
Sun 12/6
10:57 am-8:28 pm
1 stop9h 31m
Jacksonville
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$198
IslipJacksonville
ISP Islip Long Island - JAX Jacksonville
ISPJAX
Islip Long Island
Thu 11/12
10:57 am-8:28 pm
1 stop9h 31m
Jacksonville
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$208
IslipJacksonville
ISP Islip Long Island - JAX Jacksonville
ISPJAX
Islip Long Island
Thu 12/17
6:00 am-1:39 pm
1 stop7h 39m
Jacksonville
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$215
IslipJacksonville
ISP Islip Long Island - JAX Jacksonville
ISPJAX
Islip Long Island
Sun 11/15
10:57 am-8:28 pm
1 stop9h 31m
Jacksonville
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$223
IslipJacksonville
ISP Islip Long Island - JAX Jacksonville
ISPJAX
Islip Long Island
Thu 2/4
9:20 am-6:25 pm
2 stops9h 05m
Jacksonville
Mon 2/8
5:55 am-4:45 pm
2 stops10h 50m
$349
IslipJacksonville
ISP Islip Long Island - JAX Jacksonville
ISPJAX
Islip Long Island
Tue 11/24
9:40 am-3:08 pm
1 stop5h 28m
Jacksonville
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$365
Showing 1-10 of 16 resultsSorted by cheapest first
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.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Islip, New York-Jacksonville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Islip, New York-Jacksonville flight deals on Cheapflights vs. FlightHub >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 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 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.
ISP-JAX
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
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 4, 2026.
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.
Crew
8.6
Boarding
8.1
Food
7.0
Overall
8.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Crew
8.6
Boarding
8.1
Food
7.0
Overall
8.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
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.
Traveling to a place near Jacksonville?
Book flights to Jacksonville if you plan to visit one of these locationsJacksonville Beach
Fernandina Beach
Orange Park
Kingsland
Waycross
Atlantic Beach
Yulee
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Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Other flights to Jacksonville
Explore flights to Jacksonville departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on November 4, 2026.
Islip and Jacksonville flights
Browse other Islip and Jacksonville flight options. Last updated on November 4, 2026.
Other flights from Islip
Browse through other flights departing from Islip. Flights are based on user searches made on Cheapflights and were last updated on November 4, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 7,457,451 searches. Data last updated November 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$340 | Average$437 | FlexibilityNo cancel fee | On-time63% |