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$186+ 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 6/6. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — EWR
Jun 17 — Jun 241
Wed 6/17
Wed 6/24
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 May 18, 2026.

This Kiwi.com deal was found by Cheapflights users on 5/16. 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.
Mon 6/159:52 pm
ISP
-
PHL
1 stop10h 59m
Multiple Airlines
Sun 6/216:45 pm
PHL
-
ISP
2 stops45h 11m
Multiple Airlines
Deal found 5/16$294
This Kiwi.com deal was found by Cheapflights users on 5/14. 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 5/2911:00 am
ISP
-
PHL
1 stop29h 18m
Frontier
Tue 6/24:25 pm
PHL
-
ISP
2 stops17h 40m
Frontier
Deal found 5/14$329
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 6/149:52 pm
ISP
-
PHL
1 stop10h 59m
Multiple Airlines
Mon 6/157:22 pm
PHL
-
ISP
1 stop23h 16m
Multiple Airlines
Deal found 5/13$332
This Kiwi.com deal was found by Cheapflights users on 5/14. 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 5/2911:00 am
ISP
-
PHL
1 stop29h 18m
Multiple Airlines
Tue 6/27:20 am
PHL
-
ISP
1 stop9h 27m
Multiple Airlines
Deal found 5/14$334
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 6/119:52 pm
ISP
-
PHL
1 stop13h 44m
Frontier
Thu 6/187:22 pm
PHL
-
ISP
2 stops25h 35m
Frontier
Deal found 5/13$344
This Kiwi.com deal was found by Cheapflights users on 5/14. 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 5/2911:00 am
ISP
-
PHL
1 stop21h 54m
Frontier
Sat 5/309:16 pm
PHL
-
ISP
1 stop12h 49m
Frontier
Deal found 5/14$357
This Kiwi.com deal was found by Cheapflights users on 5/16. 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.
Fri 5/2911:00 am
ISP
-
PHL
1 stop21h 54m
Multiple Airlines
Mon 6/12:31 pm
PHL
-
ISP
1 stop26h 16m
Multiple Airlines
Deal found 5/16$364
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 6/129:52 pm
ISP
-
LGA
1 stop18h 09m
Frontier
Thu 6/1810:00 pm
LGA
-
ISP
2 stops22h 57m
Frontier
Deal found 5/13$367
This Kiwi.com deal was found by Cheapflights users on 5/15. 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 5/3011:57 am
ISP
-
PHL
1 stop6h 43m
Multiple Airlines
Mon 6/12:31 pm
PHL
-
ISP
1 stop26h 16m
Multiple Airlines
Deal found 5/15$380
This Kiwi.com deal was found by Cheapflights users on 5/15. 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 6/52:28 pm
ISP
-
PHL
1 stop4h 22m
Multiple Airlines
Sun 6/79:16 pm
PHL
-
ISP
1 stop12h 49m
Multiple Airlines
Deal found 5/15$384
This Kiwi.com deal was found by Cheapflights users on 5/14. 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 5/292:28 pm
ISP
-
PHL
2 stops18h 26m
Multiple Airlines
Sat 5/309:16 pm
PHL
-
ISP
1 stop12h 49m
Multiple Airlines
Deal found 5/14$395
This Kiwi.com deal was found by Cheapflights users on 5/15. 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 6/129:52 pm
ISP
-
LGA
2 stops21h 39m
Frontier
Fri 6/198:29 pm
LGA
-
ISP
1 stop24h 28m
Frontier
Deal found 5/15$398

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 May 18, 2026.

Round-trip from

$294
(Kiwi.com)

One-way from

$186
(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 May 18, 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

Mon 6/15

9:52 pm-8:51 am

1 stop10h 59m

Philadelphia

Sun 6/21

6:45 pm-3:56 pm

2 stops45h 11m

$294

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Sun 6/14

9:52 pm-8:51 am

1 stop10h 59m

Philadelphia

Mon 6/15

7:22 pm-6:38 pm

1 stop23h 16m

$332

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Fri 5/29

11:00 am-8:54 am

1 stop21h 54m

Philadelphia

Sat 5/30

9:16 pm-10:05 am

1 stop12h 49m

$357

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Thu 6/11

9:52 pm-11:36 am

1 stop13h 44m

Philadelphia

Thu 6/18

8:43 pm-7:05 pm

1 stop22h 22m

$360

IslipNew York

ISP - LGA

ISPLGA

Islip Long Island

Fri 6/12

9:52 pm-4:01 pm

1 stop18h 09m

New York LaGuardia

Thu 6/18

10:00 pm-8:57 pm

2 stops22h 57m

$367

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Sat 5/30

11:57 am-6:40 pm

1 stop6h 43m

Philadelphia

Mon 6/1

2:31 pm-4:47 pm

1 stop26h 16m

$380

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Fri 6/5

2:28 pm-6:50 pm

1 stop4h 22m

Philadelphia

Sun 6/7

9:16 pm-10:05 am

1 stop12h 49m

$384

IslipNew York

ISP - LGA

ISPLGA

Islip Long Island

Fri 6/12

9:52 pm-7:31 pm

2 stops21h 39m

New York LaGuardia

Fri 6/19

8:29 pm-8:57 pm

1 stop24h 28m

$398

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Fri 5/29

11:00 am-11:29 pm

1 stop12h 29m

Philadelphia

Mon 6/1

4:35 pm-4:47 pm

2 stops24h 12m

$410

IslipNew York

ISP - LGA

ISPLGA

Islip Long Island

Mon 6/15

9:52 pm-4:01 pm

1 stop18h 09m

New York LaGuardia

Mon 6/22

4:56 pm-3:56 pm

2 stops23h 00m

$419

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/13

Showing 1-10 of 35 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 8h 31m. Your travel time can differ by up to 13h 23m. 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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