$76+ 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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — JAX
Oct 22 — Oct 291
Round-trip
1 adult, Economy
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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
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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 September 22, 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 September 22, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/20. 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 10/2012:00 pm -
1 stop4h 26m
Fri 10/307:03 pm -
2 stops22h 28m
Deal found 9/20![Multiple Airlines logo]()
$208
This Kiwi.com deal was found by Cheapflights users on 9/21. 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 10/2712:00 pm -
1 stop4h 26m
Tue 11/35:06 pm -
1 stop18h 14m
Deal found 9/21![Breeze Airways logo]()
$213
This Kiwi.com deal was found by Cheapflights users on 9/21. 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 10/2712:00 pm -
1 stop4h 26m
Tue 11/37:03 pm -
2 stops39h 14m
Deal found 9/21![Multiple Airlines logo]()
$225
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 10/612:00 pm -
1 stop4h 26m
Thu 10/156:20 pm -
2 stops23h 40m
Deal found 9/18![Multiple Airlines logo]()
$232
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 10/612:00 pm -
1 stop4h 26m
Thu 10/1512:54 pm -
1 stop5h 57m
Deal found 9/18![Breeze Airways logo]()
$236
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 10/612:00 pm -
1 stop4h 26m
Tue 10/135:06 pm -
1 stop18h 14m
Deal found 9/18![Breeze Airways logo]()
$241
This Kiwi.com deal was found by Cheapflights users on 9/20. 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 11/110:57 am -
1 stop9h 31m
Sun 11/87:03 pm -
2 stops40h 17m
Deal found 9/20![Multiple Airlines logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 10/612:00 pm -
1 stop4h 26m
Tue 10/137:46 pm -
2 stops38h 31m
Deal found 9/18![Multiple Airlines logo]()
$252
This Kiwi.com deal was found by Cheapflights users on 9/19. 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 10/263:02 pm -
1 stop25h 24m
Fri 10/307:03 pm -
2 stops16h 17m
Deal found 9/19![Multiple Airlines logo]()
$260
This Kiwi.com deal was found by Cheapflights users on 9/21. 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 10/612:00 pm -
1 stop4h 26m
Sat 10/104:24 pm -
1 stop26h 41m
Deal found 9/21![Breeze Airways logo]()
$272
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 11/510:57 am -
1 stop9h 31m
Thu 11/1212:54 pm -
1 stop4h 39m
Deal found 9/18![Breeze Airways logo]()
$281
This Kiwi.com deal was found by Cheapflights users on 9/21. 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 10/1510:57 am -
1 stop9h 31m
Mon 10/197:46 pm -
2 stops39h 34m
Deal found 9/21![Multiple Airlines logo]()
$294
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 September 22, 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 September 22, 2026.
This Southwest deal was found by Cheapflights users on 9/19. 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 10/265:40 pm -
1 stop4h 30m
Fri 10/307:00 am -
1 stop4h 45m
Deal found 9/19![Southwest logo]()
$373
This Kiwi.com deal was found by Cheapflights users on 9/22. 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 11/1510:57 am -
1 stop9h 31m
Sat 11/218:31 pm -
1 stop22h 34m
Deal found 9/22![Breeze Airways logo]()
$446
This Southwest deal was found by Cheapflights users on 9/21. 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 10/276:05 am -
2 stops9h 15m
Tue 11/36:35 am -
2 stops8h 55m
Deal found 9/21![Southwest logo]()
$373
This Southwest deal was found by Cheapflights users on 9/20. 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 10/209:40 am -
1 stop4h 10m
Fri 10/307:00 am -
1 stop4h 45m
Deal found 9/20![Southwest logo]()
$388
This Southwest deal was found by Cheapflights users on 9/19. 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 10/306:00 am -
2 stops10h 00m
Mon 11/23:35 pm -
2 stops7h 55m
Deal found 9/19![Southwest logo]()
$401
This Southwest deal was found by Cheapflights users on 9/21. 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 11/196:05 am -
2 stops9h 00m
Sun 11/228:00 am -
1 stop3h 45m
Deal found 9/21![Southwest logo]()
$421
This Southwest deal was found by Cheapflights users on 9/22. 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 11/1412:45 pm -
1 stop7h 25m
Mon 11/237:25 pm -
1 stop4h 10m
Deal found 9/22![Southwest logo]()
$428
This Southwest deal was found by Cheapflights users on 9/17. 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 11/236:00 am -
2 stops8h 55m
Fri 11/278:00 am -
1 stop3h 45m
Deal found 9/17![Southwest logo]()
$439
This Southwest deal was found by Cheapflights users on 9/21. 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 3/175:35 am -
1 stop4h 45m
Sun 3/217:25 am -
1 stop4h 20m
Deal found 9/21![Southwest logo]()
$442
This Southwest deal was found by Cheapflights users on 9/18. 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 12/2512:30 pm -
1 stop5h 50m
Sat 1/27:05 am -
1 stop9h 20m
Deal found 9/18![Southwest logo]()
$469
Last-minute flights from Islip to JacksonvilleDiscover last-minute flight deals from Islip to Jacksonville. Data last updated September 22, 2026 and is based on user searches.
Discover last-minute flight deals from Islip to Jacksonville. Data last updated September 22, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 10/612:00 pm -
1 stop4h 26m
Thu 10/156:20 pm -
2 stops23h 40m
Deal found 9/18![Multiple Airlines logo]()
$232
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 10/612:00 pm -
1 stop4h 26m
Thu 10/1512:54 pm -
1 stop5h 57m
Deal found 9/18![Breeze Airways logo]()
$236
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 10/612:00 pm -
1 stop4h 26m
Tue 10/135:06 pm -
1 stop18h 14m
Deal found 9/18![Breeze Airways logo]()
$241
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 10/612:00 pm -
1 stop4h 26m
Tue 10/137:46 pm -
2 stops38h 31m
Deal found 9/18![Multiple Airlines logo]()
$252
This Kiwi.com deal was found by Cheapflights users on 9/21. 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 10/612:00 pm -
1 stop4h 26m
Sat 10/104:24 pm -
1 stop26h 41m
Deal found 9/21![Breeze Airways logo]()
$272
This Kiwi.com deal was found by Cheapflights users on 9/21. 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 10/612:00 pm -
1 stop4h 26m
Sat 10/107:46 pm -
2 stops14h 31m
Deal found 9/21![Multiple Airlines logo]()
$305
This Mytrip deal was found by Cheapflights users on 9/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/126:55 pm -
2 stops23h 51m
Wed 10/217:46 pm -
2 stops21h 44m
Deal found 9/20![Frontier logo]()
$311
This Kiwi.com deal was found by Cheapflights users on 9/21. 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 10/1510:57 am -
1 stop9h 31m
Mon 10/197:46 pm -
2 stops39h 34m
Deal found 9/21![Multiple Airlines logo]()
$294
This Kiwi.com deal was found by Cheapflights users on 9/20. 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 10/2012:00 pm -
1 stop4h 26m
Fri 10/307:03 pm -
2 stops22h 28m
Deal found 9/20![Multiple Airlines logo]()
$208
This Kiwi.com deal was found by Cheapflights users on 9/19. 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 10/263:02 pm -
1 stop25h 24m
Fri 10/307:03 pm -
2 stops16h 17m
Deal found 9/19![Multiple Airlines logo]()
$260
This Kiwi.com deal was found by Cheapflights users on 9/21. 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 10/2712:00 pm -
1 stop4h 26m
Tue 11/35:06 pm -
1 stop18h 14m
Deal found 9/21![Breeze Airways logo]()
$213
This Kiwi.com deal was found by Cheapflights users on 9/21. 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 10/2712:00 pm -
1 stop4h 26m
Tue 11/37:03 pm -
2 stops39h 14m
Deal found 9/21![Multiple Airlines logo]()
$225
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 September 22, 2026.
Search for one-way flight options from Islip to Jacksonville. Find affordable one-way fares based on user searches. Data last updated September 22, 2026.
This CheapOair deal was found by Cheapflights users on 9/20. 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 10/2012:00 pm -
1 stop4h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Breeze Airways logo]()
$76
This CheapOair deal was found by Cheapflights users on 9/18. 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 10/612:00 pm -
1 stop4h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Breeze Airways logo]()
$82
This CheapOair deal was found by Cheapflights users on 9/17. 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 10/2712:00 pm -
1 stop4h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Breeze Airways logo]()
$87
This CheapOair deal was found by Cheapflights users on 9/18. 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 9/18![Breeze Airways logo]()
$91
This CheapOair deal was found by Cheapflights users on 9/21. 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 1/710:57 am -
1 stop11h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Breeze Airways logo]()
$106
This CheapOair deal was found by Cheapflights users on 9/17. 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 10/2910:57 am -
1 stop9h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Breeze Airways logo]()
$108
This CheapOair deal was found by Cheapflights users on 9/20. 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 9/20![Breeze Airways logo]()
$116
This CheapOair deal was found by Cheapflights users on 9/20. 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 10/1312:00 pm -
1 stop4h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Breeze Airways logo]()
$119
This CheapOair deal was found by Cheapflights users on 9/19. 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 12/310:57 am -
1 stop9h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Breeze Airways logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 11/1012:00 pm -
2 stops30h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Multiple Airlines logo]()
$128
This CheapOair deal was found by Cheapflights users on 9/18. 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 11/810:57 am -
1 stop9h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Breeze Airways logo]()
$133
This CheapOair deal was found by Cheapflights users on 9/18. 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 10/410:57 am -
1 stop9h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Breeze Airways logo]()
$136
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 September 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $208 (Kiwi.com) |
One-way from | $76 (CheapOair) |
Popular in | July |
Cheapest in | February |
Average price | $475 |
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 September 22, 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
IslipJacksonville
ISP Islip Long Island - JAX Jacksonville
ISPJAX
Islip Long Island
Thu 1/7
10:57 am-10:15 pm
1 stop11h 18m
Jacksonville
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$106
IslipJacksonville
ISP Islip Long Island - JAX Jacksonville
ISPJAX
Islip Long Island
Sun 10/4
10:57 am-8:28 pm
1 stop9h 31m
Jacksonville
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$136
Quickest round-trip
IslipJacksonville
ISP Islip Long Island - JAX Jacksonville
ISPJAX
Islip Long Island
Tue 12/1
12:00 pm-4:26 pm
1 stop4h 26m
Jacksonville
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$147
IslipJacksonville
ISP Islip Long Island - JAX Jacksonville
ISPJAX
Islip Long Island
Sat 10/31
6:00 am-12:40 pm
1 stop6h 40m
Jacksonville
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$170
IslipJacksonville
ISP Islip Long Island - JAX Jacksonville
ISPJAX
Islip Long Island
Thu 10/1
10:57 am-8:28 pm
1 stop9h 31m
Jacksonville
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$177
IslipJacksonville
ISP Islip Long Island - JAX Jacksonville
ISPJAX
Islip Long Island
Sun 10/11
10:57 am-8:28 pm
1 stop9h 31m
Jacksonville
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$190
IslipJacksonville
ISP Islip Long Island - JAX Jacksonville
ISPJAX
Islip Long Island
Fri 10/16
3:10 pm-10:10 pm
1 stop7h 00m
Jacksonville
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$229
IslipJacksonville
ISP Islip Long Island - JAX Jacksonville
ISPJAX
Islip Long Island
Thu 10/8
10:57 am-8:28 pm
1 stop9h 31m
Jacksonville
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$230
IslipJacksonville
ISP Islip Long Island - JAX Jacksonville
ISPJAX
Islip Long Island
Fri 12/25
6:05 am-3:05 pm
2 stops9h 00m
Jacksonville
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$244
IslipJacksonville
ISP Islip Long Island - JAX Jacksonville
ISPJAX
Islip Long Island
Fri 10/9
6:55 pm-6:46 pm
2 stops23h 51m
Jacksonville
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$259
Showing 1-10 of 20 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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 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.
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 September 22, 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.
Boarding
8.1
Overall
8.0
Crew
8.6
Food
7.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Boarding
8.1
Overall
8.0
Crew
8.6
Food
7.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
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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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 September 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$340 | Average$437 | FlexibilityNo cancel fee | On-time63% |