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$151+ 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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — EWR
Aug 31 — Sep 71
Mon 8/31
Mon 9/7
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 August 1, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/285:43 pm
ISP
-
PHL
1 stop15h 47m
Frontier
Thu 10/15:45 pm
PHL
-
ISP
1 stop23h 13m
Frontier
Deal found 7/30$240
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/285:43 pm
ISP
-
PHL
1 stop15h 47m
Multiple Airlines
Thu 10/15:45 pm
PHL
-
ISP
2 stops20h 37m
Multiple Airlines
Deal found 7/30$276
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 9/105:43 pm
ISP
-
PHL
1 stop15h 22m
Frontier
Thu 9/173:30 pm
PHL
-
ISP
1 stop25h 28m
Frontier
Deal found 7/31$285
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 9/105:28 pm
ISP
-
PHL
2 stops19h 08m
Multiple Airlines
Thu 9/173:30 pm
PHL
-
ISP
1 stop25h 28m
Multiple Airlines
Deal found 7/29$295
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 8/2610:57 am
ISP
-
PHL
1 stop13h 02m
Frontier
Wed 9/25:16 pm
PHL
-
ISP
1 stop24h 58m
Frontier
Deal found 7/29$298
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 8/2611:57 am
ISP
-
PHL
2 stops43h 18m
Multiple Airlines
Wed 9/25:16 pm
PHL
-
ISP
1 stop24h 58m
Multiple Airlines
Deal found 7/29$300
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2710:57 am
ISP
-
PHL
2 stops20h 18m
Frontier
Thu 9/35:05 am
PHL
-
ISP
1 stop13h 09m
Frontier
Deal found 7/30$305
This Kiwi.com deal was found by Cheapflights users on 7/31. 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.
Fri 8/287:46 pm
ISP
-
PHL
1 stop29h 30m
Multiple Airlines
Fri 9/49:00 am
PHL
-
ISP
1 stop10h 51m
Multiple Airlines
Deal found 7/31$319
This Kiwi.com deal was found by Cheapflights users on 7/31. 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.
Fri 8/287:46 pm
ISP
-
PHL
1 stop29h 30m
Frontier
Fri 9/48:37 pm
PHL
-
ISP
2 stops21h 37m
Frontier
Deal found 7/31$323
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 11/33:43 pm
ISP
-
PHL
1 stop19h 57m
Multiple Airlines
Sun 11/81:52 pm
PHL
-
ISP
2 stops20h 36m
Multiple Airlines
Deal found 7/29$339
This Expedia deal was found by Cheapflights users on 7/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/254:58 pm
ISP
-
JFK
1 stop8h 20m
JetBlue
Tue 9/111:30 am
JFK
-
ISP
1 stop10h 19m
JetBlue
Deal found 7/28$341
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 8/2611:57 am
ISP
-
LGA
2 stops11h 17m
Multiple Airlines
Wed 9/28:29 pm
LGA
-
ISP
1 stop13h 24m
Multiple Airlines
Deal found 7/29$343

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 August 1, 2026.

Round-trip from

$240
(Kiwi.com)

One-way from

$151
(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 August 1, 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

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Thu 9/10

5:43 pm-9:05 am

1 stop15h 22m

Philadelphia

Thu 9/17

3:30 pm-4:58 pm

1 stop25h 28m

$285

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Wed 8/26

10:57 am-11:59 pm

1 stop13h 02m

Philadelphia

Wed 9/2

5:16 pm-6:14 pm

1 stop24h 58m

$298

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Fri 8/28

7:46 pm-1:16 am

1 stop29h 30m

Philadelphia

Fri 9/4

9:00 am-7:51 pm

1 stop10h 51m

$319

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Fri 8/28

7:46 pm-1:16 am

1 stop29h 30m

Philadelphia

Fri 9/4

8:37 pm-6:14 pm

2 stops21h 37m

$323

IslipNew York

ISP - JFK

ISPJFK

Islip Long Island

Fri 10/2

7:00 am-1:57 pm

1 stop6h 57m

New York John F Kennedy Intl

Tue 10/6

7:30 am-3:36 pm

1 stop8h 06m

$341

IslipNew York

ISP - JFK

ISPJFK

Islip Long Island

Tue 8/25

4:58 pm-1:18 am

1 stop8h 20m

New York John F Kennedy Intl

Tue 9/1

11:30 am-9:49 pm

1 stop10h 19m

$341

IslipNew York

ISP - JFK

ISPJFK

Islip Long Island

Thu 9/10

7:00 am-2:07 pm

1 stop7h 07m

New York John F Kennedy Intl

Fri 9/11

3:45 pm-11:22 pm

1 stop7h 37m

$341

IslipNew York

ISP - LGA

ISPLGA

Islip Long Island

Tue 9/1

6:00 am-2:59 pm

1 stop8h 59m

New York LaGuardia

Sat 9/5

2:29 pm-11:34 pm

1 stop9h 05m

$343

IslipNew York

ISP - JFK

ISPJFK

Islip Long Island

Thu 8/27

4:58 pm-1:18 am

1 stop8h 20m

New York John F Kennedy Intl

Thu 9/3

12:00 pm-9:49 pm

1 stop9h 49m

$343

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Mon 9/28

12:35 pm-9:45 pm

2 stops9h 10m

Philadelphia

Thu 10/1

2:35 pm-11:35 pm

2 stops9h 00m

$377

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 42 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 7h 07m. Your travel time can differ by up to 8h 40m. 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 - Philadelphia, Islip Long Island - New York John F Kennedy Intl 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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