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$133+ 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 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — EWR
May 10 — May 171
Sun 5/10
Sun 5/17
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 10, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/7. 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 4/278:31 pm
ISP
-
PHL
1 stop15h 20m
Frontier
Wed 4/297:56 pm
PHL
-
ISP
1 stop13h 37m
Frontier
Deal found 4/7$235
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 5/306:09 pm
ISP
-
LGA
1 stop5h 12m
Multiple Airlines
Sat 6/68:00 am
LGA
-
ISP
1 stop9h 29m
Multiple Airlines
Deal found 4/6$257
This Kiwi.com deal was found by Cheapflights users on 4/7. 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
Tue 5/129:20 am
PHL
-
ISP
1 stop7h 27m
Multiple Airlines
Deal found 4/7$263
This Kiwi.com deal was found by Cheapflights users on 4/7. 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 4/274:07 pm
ISP
-
PHL
2 stops17h 42m
Multiple Airlines
Wed 4/297:56 pm
PHL
-
ISP
1 stop13h 37m
Multiple Airlines
Deal found 4/7$272
This Kiwi.com deal was found by Cheapflights users on 4/8. 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 4/2211:50 am
ISP
-
PHL
2 stops19h 51m
Multiple Airlines
Sun 4/265:05 am
PHL
-
ISP
1 stop28h 23m
Multiple Airlines
Deal found 4/8$284
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 4/178:31 pm
ISP
-
PHL
1 stop16h 21m
Frontier
Sun 4/197:15 pm
PHL
-
ISP
2 stops13h 58m
Frontier
Deal found 4/6$293
This Kiwi.com deal was found by Cheapflights users on 4/6. 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
Mon 5/118:15 pm
LGA
-
ISP
1 stop14h 45m
Multiple Airlines
Deal found 4/6$296
This Kiwi.com deal was found by Cheapflights users on 4/5. 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 4/204:07 pm
ISP
-
LGA
1 stop23h 57m
Multiple Airlines
Fri 4/246:30 am
LGA
-
ISP
2 stops13h 06m
Multiple Airlines
Deal found 4/5$316
This Trip.com deal was found by Cheapflights users on 4/5. 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.
Fri 6/511:00 am
ISP
-
PHL
1 stop12h 29m
Frontier
Sun 6/74:35 pm
PHL
-
ISP
2 stops17h 30m
Frontier
Deal found 4/5$319
This KAYAK deal was found by Cheapflights users on 4/9. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1012:25 pm
ISP
-
JFK
1 stop6h 34m
JetBlue
Tue 6/165:01 am
JFK
-
ISP
1 stop6h 29m
JetBlue
Deal found 4/9$411
This Expedia deal was found by Cheapflights users on 4/8. 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.
Fri 4/248:17 am
ISP
-
JFK
1 stop12h 13m
JetBlue
Tue 4/285:59 am
JFK
-
ISP
1 stop10h 30m
JetBlue
Deal found 4/8$428
This KAYAK deal was found by Cheapflights users on 4/9. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/102:35 pm
ISP
-
JFK
1 stop9h 24m
JetBlue
Mon 6/156:38 am
JFK
-
ISP
1 stop7h 33m
JetBlue
Deal found 4/9$431

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 10, 2026.

Round-trip from

$235
(Kiwi.com)

One-way from

$133
(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 10, 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 4/27

8:31 pm-11:51 am

1 stop15h 20m

Philadelphia

Wed 4/29

7:56 pm-9:33 am

1 stop13h 37m

$235

IslipNew York

ISP - LGA

ISPLGA

Islip Long Island

Sat 5/30

6:09 pm-11:21 pm

1 stop5h 12m

New York LaGuardia

Sat 6/6

8:00 am-5:29 pm

1 stop9h 29m

$257

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Tue 5/5

5:38 pm-8:59 am

1 stop15h 21m

Philadelphia

Tue 5/12

9:20 am-4:47 pm

1 stop7h 27m

$263

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Mon 4/27

4:07 pm-9:49 am

2 stops17h 42m

Philadelphia

Wed 4/29

7:56 pm-9:33 am

1 stop13h 37m

$272

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Wed 4/22

11:50 am-7:41 am

2 stops19h 51m

Philadelphia

Sun 4/26

5:05 am-9:28 am

1 stop28h 23m

$284

IslipNew York

ISP - LGA

ISPLGA

Islip Long Island

Mon 5/4

8:31 pm-3:58 pm

2 stops19h 27m

New York LaGuardia

Mon 5/11

8:15 pm-11:00 am

1 stop14h 45m

$296

IslipNew York

ISP - LGA

ISPLGA

Islip Long Island

Mon 4/20

4:07 pm-4:04 pm

1 stop23h 57m

New York LaGuardia

Fri 4/24

6:30 am-7:36 pm

2 stops13h 06m

$316

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Fri 6/5

11:00 am-11:29 pm

1 stop12h 29m

Philadelphia

Sun 6/7

4:35 pm-10:05 am

2 stops17h 30m

$319

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Fri 5/29

11:00 am-12:44 am

2 stops13h 44m

Philadelphia

Sun 5/31

4:24 pm-7:51 pm

1 stop27h 27m

$365

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Tue 7/7

5:27 pm-2:36 pm

2 stops21h 09m

Philadelphia

Mon 7/20

7:20 am-1:28 pm

1 stop6h 08m

$416

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/8

Showing 1-10 of 37 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 12h 13m. Your travel time can differ by up to 3h 07m. 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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