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$104+ 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 5/26. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — EWR
May 29 — Jun 51
Fri 5/29
Fri 6/5
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 29, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/25. 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 5/236:09 pm
ISP
-
PHL
1 stop25h 51m
Multiple Airlines
Sat 5/302:57 pm
PHL
-
ISP
1 stop19h 08m
Multiple Airlines
Deal found 4/25$254
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 6/26:02 pm
ISP
-
PHL
1 stop14h 57m
Frontier
Fri 6/55:04 pm
PHL
-
ISP
1 stop17h 11m
Frontier
Deal found 4/26$256
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 6/26:02 pm
ISP
-
PHL
1 stop14h 57m
Frontier
Sat 6/69:16 pm
PHL
-
ISP
1 stop12h 49m
Frontier
Deal found 4/26$261
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 6/26:02 pm
ISP
-
PHL
1 stop14h 57m
Frontier
Thu 6/49:16 pm
PHL
-
ISP
1 stop12h 49m
Frontier
Deal found 4/26$267
This Kiwi.com deal was found by Cheapflights users on 4/26. 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
Tue 6/28:10 am
PHL
-
ISP
2 stops25h 55m
Multiple Airlines
Deal found 4/26$270
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 5/911:00 am
ISP
-
PHL
1 stop13h 44m
Multiple Airlines
Wed 5/132:57 pm
PHL
-
ISP
1 stop19h 30m
Multiple Airlines
Deal found 4/24$288
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 5/1511:00 am
ISP
-
PHL
1 stop8h 18m
Multiple Airlines
Mon 5/184:35 pm
PHL
-
ISP
2 stops24h 12m
Multiple Airlines
Deal found 4/26$290
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 5/3111:00 am
ISP
-
PHL
1 stop24h 39m
Frontier
Tue 6/27:55 am
PHL
-
ISP
1 stop9h 22m
Frontier
Deal found 4/26$292
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 stop4h 41m
Multiple Airlines
Wed 6/35:04 pm
PHL
-
ISP
1 stop17h 01m
Multiple Airlines
Deal found 4/26$294
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 6/12:28 pm
ISP
-
PHL
1 stop4h 12m
Multiple Airlines
Tue 6/29:16 pm
PHL
-
ISP
1 stop12h 49m
Multiple Airlines
Deal found 4/26$298
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 5/711:12 am
ISP
-
LGA
1 stop10h 48m
Frontier
Mon 5/1110:55 pm
LGA
-
ISP
2 stops35h 10m
Frontier
Deal found 4/24$311
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/112:28 pm
ISP
-
LGA
2 stops25h 43m
Multiple Airlines
Fri 5/153:00 pm
LGA
-
ISP
1 stop19h 05m
Multiple Airlines
Deal found 4/28$316

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 29, 2026.

Round-trip from

$254
(Kiwi.com)

One-way from

$104
(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 29, 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

Wed 6/3

11:00 am-6:40 pm

1 stop7h 40m

Philadelphia

Sat 6/6

5:34 pm-10:05 am

1 stop16h 31m

$261

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Fri 5/15

11:00 am-7:18 pm

1 stop8h 18m

Philadelphia

Mon 5/18

4:35 pm-4:47 pm

2 stops24h 12m

$290

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Sat 5/9

11:57 am-8:54 am

2 stops20h 57m

Philadelphia

Wed 5/13

2:57 pm-10:27 am

1 stop19h 30m

$291

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Mon 6/1

8:31 pm-10:51 pm

1 stop26h 20m

Philadelphia

Sat 6/6

9:16 pm-10:05 am

1 stop12h 49m

$307

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Thu 6/4

11:00 am-7:18 pm

1 stop8h 18m

Philadelphia

Sun 6/7

9:16 pm-10:05 am

1 stop12h 49m

$308

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Mon 5/18

11:00 am-8:59 am

1 stop21h 59m

Philadelphia

Wed 5/20

10:11 am-10:27 am

1 stop24h 16m

$309

IslipNew York

ISP - LGA

ISPLGA

Islip Long Island

Mon 5/11

2:28 pm-4:11 pm

2 stops25h 43m

New York LaGuardia

Fri 5/15

3:00 pm-10:05 am

1 stop19h 05m

$316

IslipNew York

ISP - LGA

ISPLGA

Islip Long Island

Fri 6/12

10:48 am-10:05 pm

1 stop11h 17m

New York LaGuardia

Sun 6/14

3:00 pm-10:03 am

1 stop19h 03m

$320

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Thu 6/4

11:00 am-12:44 am

2 stops13h 44m

Philadelphia

Sun 6/7

6:10 pm-10:05 am

1 stop15h 55m

$321

IslipNew York

ISP - LGA

ISPLGA

Islip Long Island

Mon 5/25

11:00 am-4:11 pm

1 stop29h 11m

New York LaGuardia

Mon 6/1

8:29 pm-5:17 pm

1 stop20h 48m

$351

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/26

Showing 1-10 of 43 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 40m. Your travel time can differ by up to 08m. Airlines will cover a distance of 129 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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