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$138+ 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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — EWR
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
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Cheap 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 November 26, 2025.

Round-trip from

$210
(Kiwi.com)

One-way from

$138
(Kiwi.com)
From Islip Long Island to New Jersey
Search Deals
One-way flight from Islip Long Island to New Jersey
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Find 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 November 26, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/25. 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.
Mon 12/1510:19 amISP - LGA
2 stops29h 40mMultiple Airlines
Tue 12/306:30 pmLGA - ISP
1 stop22h 07mMultiple Airlines
Deal found 11/25$212
This Kiwi.com deal was found by Cheapflights users on 11/23. 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 12/98:29 pmISP - LGA
1 stop21h 01mMultiple Airlines
Sat 12/136:30 pmLGA - ISP
1 stop15h 50mMultiple Airlines
Deal found 11/23$214
This Kiwi.com deal was found by Cheapflights users on 11/24. 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.
Tue 12/28:29 pmISP - PHL
1 stop16h 20mFrontier
Thu 12/410:00 pmPHL - ISP
1 stop21h 34mFrontier
Deal found 11/24$246
This Kiwi.com deal was found by Cheapflights users on 11/26. 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 12/1510:19 amISP - LGA
1 stop9h 41mMultiple Airlines
Thu 12/185:30 pmLGA - ISP
2 stops19h 12mMultiple Airlines
Deal found 11/26$270
This Kiwi.com deal was found by Cheapflights users on 11/25. 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.
Tue 12/2312:20 pmISP - JFK
1 stop21h 40mFrontier
Tue 12/301:00 pmJFK - ISP
2 stops27h 37mFrontier
Deal found 11/25$273
This Kiwi.com deal was found by Cheapflights users on 11/25. 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.
Tue 12/2312:20 pmISP - LGA
1 stop22h 45mFrontier
Tue 12/3010:00 pmLGA - ISP
2 stops18h 37mFrontier
Deal found 11/25$283
This Kiwi.com deal was found by Cheapflights users on 11/25. 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.
Mon 12/1510:19 amISP - JFK
2 stops22h 42mFrontier
Tue 12/301:24 pmJFK - ISP
1 stop10h 35mFrontier
Deal found 11/25$298
This Kiwi.com deal was found by Cheapflights users on 11/24. 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.
Tue 12/28:29 pmISP - PHL
1 stop16h 20mMultiple Airlines
Thu 12/410:00 pmPHL - ISP
2 stops15h 45mMultiple Airlines
Deal found 11/24$298
This Kiwi.com deal was found by Cheapflights users on 11/26. 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 12/1510:19 amISP - JFK
2 stops14h 40mMultiple Airlines
Thu 12/181:24 pmJFK - ISP
1 stop10h 07mMultiple Airlines
Deal found 11/26$325
This JetBlue deal was found by Cheapflights users on 11/24. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1611:50 amISP - LGA
1 stop8h 44mJetBlue
Wed 1/219:29 amLGA - ISP
1 stop8h 21mJetBlue
Deal found 11/24$333
This Kiwi.com deal was found by Cheapflights users on 11/25. 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.
Mon 12/1510:19 amISP - JFK
1 stop23h 41mFrontier
Thu 12/181:24 pmJFK - ISP
1 stop10h 07mFrontier
Deal found 11/25$368
This JetBlue deal was found by Cheapflights users on 11/24. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1611:50 amISP - LGA
1 stop8h 44mJetBlue
Mon 1/199:29 amLGA - ISP
1 stop8h 21mJetBlue
Deal found 11/24$453

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 November 26, 2025.
Use the filters below to find and compare flights from Islip to New Jersey that are best for you.

Fly from

Islip

Fly to

New Jersey

Route

Depart

Return

Price

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Wed 1/21

11:50 am-7:00 pm

1 stop7h 10m

Philadelphia

Fri 1/23

5:30 am-8:47 pm

1 stop15h 17m

$210

IslipNew York

ISP - LGA

ISPLGA

Islip Long Island

Mon 12/15

10:19 am-3:59 pm

2 stops29h 40m

New York LaGuardia

Tue 12/30

6:30 pm-4:37 pm

1 stop22h 07m

$212

IslipNew York

ISP - LGA

ISPLGA

Islip Long Island

Tue 12/9

8:29 pm-5:30 pm

1 stop21h 01m

New York LaGuardia

Sat 12/13

6:30 pm-10:20 am

1 stop15h 50m

$214

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Tue 1/13

8:00 am-9:20 pm

1 stop13h 20m

Philadelphia

Sat 1/31

8:00 am-11:15 am

2 stops27h 15m

$237

IslipNew York

ISP - JFK

ISPJFK

Islip Long Island

Thu 1/8

11:55 am-12:15 pm

2 stops24h 20m

New York John F Kennedy Intl

Thu 1/15

6:30 am-7:03 pm

1 stop12h 33m

$258

IslipNew York

ISP - LGA

ISPLGA

Islip Long Island

Tue 12/23

12:20 pm-11:05 am

1 stop22h 45m

New York LaGuardia

Tue 12/30

6:30 pm-4:37 pm

1 stop22h 07m

$270

IslipNew York

ISP - LGA

ISPLGA

Islip Long Island

Mon 12/15

10:19 am-8:00 pm

1 stop9h 41m

New York LaGuardia

Thu 12/18

5:30 pm-12:42 pm

2 stops19h 12m

$270

IslipNew York

ISP - JFK

ISPJFK

Islip Long Island

Tue 12/23

12:20 pm-10:00 am

1 stop21h 40m

New York John F Kennedy Intl

Tue 12/30

1:00 pm-4:37 pm

2 stops27h 37m

$273

IslipNew York

ISP - LGA

ISPLGA

Islip Long Island

Tue 12/23

12:20 pm-11:05 am

1 stop22h 45m

New York LaGuardia

Tue 12/30

10:00 pm-4:37 pm

2 stops18h 37m

$283

IslipNew York

ISP - JFK

ISPJFK

Islip Long Island

Mon 12/15

10:19 am-9:01 am

2 stops22h 42m

New York John F Kennedy Intl

Tue 12/30

1:24 pm-11:59 pm

1 stop10h 35m

$298

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/25

Showing 1-10 of 21 results
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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 can get you from Islip, New York to New Jersey in just under 21h 40m. Your travel time can differ by up to . Airlines will cover a distance of 37 mi.

  • 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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