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$110+ Cheap flights from Islip, NY (ISP) to New Jersey

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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — EWR
May 21 — May 281
Thu 5/21
Thu 5/28
1 adult, Economy
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Cheap flight deals from Islip to New Jersey

Cheapest flights from Islip to New Jersey
Explore the most affordable flight options available from Islip to New Jersey. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 21, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/20. 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 5/55:38 pm
ISP
-
LGA
1 stop22h 33m
Multiple Airlines
Sat 5/98:00 am
LGA
-
ISP
1 stop9h 29m
Multiple Airlines
Deal found 4/20$233
This Kiwi.com deal was found by Cheapflights users on 4/21. 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 5/195:38 pm
ISP
-
LGA
1 stop20h 22m
Multiple Airlines
Tue 5/2610:00 pm
LGA
-
ISP
2 stops36h 05m
Multiple Airlines
Deal found 4/21$250
This Kiwi.com deal was found by Cheapflights users on 4/19. 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.
Wed 5/276:09 pm
ISP
-
PHL
1 stop25h 51m
Multiple Airlines
Fri 6/122:57 pm
PHL
-
ISP
1 stop19h 06m
Multiple Airlines
Deal found 4/19$253
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 5/55:38 pm
ISP
-
PHL
1 stop15h 21m
Multiple Airlines
Sat 5/910:01 am
PHL
-
ISP
1 stop7h 28m
Multiple Airlines
Deal found 4/20$279
This Kiwi.com deal was found by Cheapflights users on 4/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1711:12 am
ISP
-
PHL
1 stop21h 42m
Frontier
Tue 5/1912:21 pm
PHL
-
ISP
1 stop21h 44m
Frontier
Deal found 4/17$293
This Kiwi.com deal was found by Cheapflights users on 4/16. 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.
Sat 5/1611:57 am
ISP
-
PHL
2 stops9h 31m
Multiple Airlines
Mon 5/182:57 pm
PHL
-
ISP
1 stop20h 03m
Multiple Airlines
Deal found 4/16$294
This Kiwi.com deal was found by Cheapflights users on 4/19. 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 5/48:31 pm
ISP
-
LGA
2 stops19h 27m
Multiple Airlines
Sat 5/98:00 am
LGA
-
ISP
1 stop9h 29m
Multiple Airlines
Deal found 4/19$298
This Kiwi.com deal was found by Cheapflights users on 4/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/38:31 pm
ISP
-
LGA
2 stops37h 29m
Multiple Airlines
Thu 5/73:00 pm
LGA
-
ISP
1 stop19h 05m
Multiple Airlines
Deal found 4/17$304
This Kiwi.com deal was found by Cheapflights users on 4/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:43 pm
ISP
-
PHL
1 stop13h 58m
Multiple Airlines
Sun 5/315:32 pm
PHL
-
ISP
2 stops19h 56m
Multiple Airlines
Deal found 4/17$310
This Kiwi.com deal was found by Cheapflights users on 4/18. 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.
Sun 5/38:31 pm
ISP
-
PHL
1 stop27h 26m
Frontier
Thu 5/74:35 pm
PHL
-
ISP
2 stops17h 30m
Frontier
Deal found 4/18$311
This Kiwi.com deal was found by Cheapflights users on 4/18. 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.
Sat 7/2511:57 am
ISP
-
PHL
1 stop6h 44m
Multiple Airlines
Tue 7/286:42 am
PHL
-
ISP
1 stop27h 21m
Multiple Airlines
Deal found 4/18$314
This Trip.com deal was found by Cheapflights users on 4/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:38 pm
ISP
-
PHL
1 stop15h 21m
Frontier
Sat 5/94:35 pm
PHL
-
ISP
2 stops17h 52m
Frontier
Deal found 4/20$315

Find flight deals from Islip to New Jersey

Keep the following information in mind while searching for Islip to New Jersey flight deals. Data was last updated April 21, 2026.

Round-trip from

$204
(Kiwi.com)

One-way from

$110
(Kiwi.com)
From Islip Long Island to New Jersey
Search Deals
One-way flight from Islip Long Island to New Jersey
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Islip to New Jersey 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 21, 2026.
Use the filters below to find and compare flights from Islip to New Jersey that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IslipNew York

ISP - LGA

ISPLGA

Islip Long Island

Tue 5/5

5:38 pm-4:11 pm

1 stop22h 33m

New York LaGuardia

Sat 5/9

8:00 am-5:29 pm

1 stop9h 29m

$233

IslipNew York

ISP - LGA

ISPLGA

Islip Long Island

Tue 5/19

5:38 pm-2:00 pm

1 stop20h 22m

New York LaGuardia

Tue 5/26

10:00 pm-10:05 am

2 stops36h 05m

$250

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Wed 5/27

6:09 pm-8:00 pm

1 stop25h 51m

Philadelphia

Fri 6/12

2:57 pm-10:03 am

1 stop19h 06m

$253

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Sun 5/17

11:12 am-8:54 am

1 stop21h 42m

Philadelphia

Tue 5/19

12:21 pm-10:05 am

1 stop21h 44m

$293

IslipNew York

ISP - LGA

ISPLGA

Islip Long Island

Mon 5/4

8:31 pm-3:58 pm

2 stops19h 27m

New York LaGuardia

Sat 5/9

8:00 am-5:29 pm

1 stop9h 29m

$298

IslipNew York

ISP - LGA

ISPLGA

Islip Long Island

Sun 5/3

8:31 pm-10:00 am

2 stops37h 29m

New York LaGuardia

Thu 5/7

3:00 pm-10:05 am

1 stop19h 05m

$304

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Sat 7/25

11:57 am-6:41 pm

1 stop6h 44m

Philadelphia

Tue 7/28

6:42 am-10:03 am

1 stop27h 21m

$314

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Tue 5/5

5:38 pm-8:59 am

1 stop15h 21m

Philadelphia

Sat 5/9

4:35 pm-10:27 am

2 stops17h 52m

$315

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Fri 5/29

6:43 pm-8:41 am

1 stop13h 58m

Philadelphia

Sun 5/31

9:16 pm-10:05 am

1 stop12h 49m

$342

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Sun 5/3

4:07 pm-8:10 am

2 stops16h 03m

Philadelphia

Thu 5/7

7:45 am-10:05 am

2 stops26h 20m

$342

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/19

Showing 1-10 of 41 resultsSorted by cheapest first
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Best time to book a flight from Islip to New Jersey

Have a flexible travel schedule? Discover the best time to fly to New Jersey 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 New Jersey
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Islip to New Jersey. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Islip to New Jersey?

    Islip Long Island (ISP) is the airport you will fly out of if you book a flight from Islip to New Jersey. It is only a 7.2 mi journey to Long Island (ISP) from Islip’s city center.

  • How long is the flight from Islip, New York to New Jersey?

    Frontier and JetBlue can get you from Islip, New York to New Jersey in just under 9h 24m. Your travel time can differ by up to 12h 18m. Airlines will cover a distance of 37 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Islip, New York to New Jersey?

    The most popular flight routes from Islip, New York to New Jersey are Islip Long Island - New York John F Kennedy Intl, Islip Long Island - Philadelphia and Islip Long Island - New York LaGuardia.

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

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

  • How can I find direct flights from Islip to New Jersey?

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

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

    Yes. Cheapflights offers flight deals from Islip to New Jersey by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Islip to New Jersey

See prices for flight routes from nearby airports that may be better suited for you.
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