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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 4/24. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — EWR
Apr 25 — May 21
Sat 4/25
Sat 5/2
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 March 26, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/25. 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.
Wed 4/2211:50 am
ISP
-
LGA
2 stops9h 09m
Multiple Airlines
Wed 4/298:25 pm
LGA
-
ISP
1 stop13h 08m
Multiple Airlines
Deal found 3/25$208
This Kiwi.com deal was found by Cheapflights users on 3/25. 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.
Wed 5/1311:00 am
ISP
-
PHL
1 stop12h 37m
Frontier
Fri 5/158:35 pm
PHL
-
ISP
2 stops13h 30m
Frontier
Deal found 3/25$226
This Kiwi.com deal was found by Cheapflights users on 3/25. 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 5/166:43 pm
ISP
-
PHL
1 stop30h 23m
Frontier
Wed 5/205:10 pm
PHL
-
ISP
1 stop16h 55m
Frontier
Deal found 3/25$244
This Kiwi.com deal was found by Cheapflights users on 3/24. 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 4/234:07 pm
ISP
-
PHL
1 stop15h 34m
Multiple Airlines
Thu 4/307:00 am
PHL
-
ISP
2 stops26h 13m
Multiple Airlines
Deal found 3/24$251
This Kiwi.com deal was found by Cheapflights users on 3/24. 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 5/2811:00 am
ISP
-
LGA
1 stop11h 15m
Multiple Airlines
Thu 6/43:29 pm
LGA
-
ISP
1 stop18h 36m
Multiple Airlines
Deal found 3/24$269
This Kiwi.com deal was found by Cheapflights users on 3/23. 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.
Sun 5/1711:00 am
ISP
-
PHL
1 stop21h 54m
Frontier
Mon 5/188:35 pm
PHL
-
ISP
2 stops14h 25m
Frontier
Deal found 3/23$275
This Kiwi.com deal was found by Cheapflights users on 3/25. 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 5/1611:57 am
ISP
-
PHL
2 stops20h 57m
Multiple Airlines
Wed 5/2010:11 am
PHL
-
ISP
1 stop23h 54m
Multiple Airlines
Deal found 3/25$278
This Kiwi.com deal was found by Cheapflights users on 3/23. 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.
Sun 5/1711:00 am
ISP
-
PHL
1 stop21h 56m
Multiple Airlines
Mon 5/187:22 pm
PHL
-
ISP
1 stop21h 25m
Multiple Airlines
Deal found 3/23$307
This Kiwi.com deal was found by Cheapflights users on 3/21. 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 6/511:00 am
ISP
-
LGA
1 stop11h 15m
Multiple Airlines
Mon 6/88:29 pm
LGA
-
ISP
1 stop19h 27m
Multiple Airlines
Deal found 3/21$332
This Trip.com deal was found by Cheapflights users on 3/23. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2010:08 am
ISP
-
LGA
1 stop12h 03m
Multiple Airlines
Mon 4/277:00 am
LGA
-
ISP
1 stop8h 12m
Multiple Airlines
Deal found 3/23$355
This Kiwi.com deal was found by Cheapflights users on 3/21. 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 6/511:00 am
ISP
-
LGA
2 stops12h 14m
Frontier
Mon 6/88:29 pm
LGA
-
ISP
1 stop19h 27m
Frontier
Deal found 3/21$369
This Priceline deal was found by Cheapflights users on 3/25. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/225:25 pm
ISP
-
JFK
1 stop6h 31m
JetBlue
Wed 4/295:59 am
JFK
-
ISP
1 stop10h 31m
JetBlue
Deal found 3/25$408

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 March 26, 2026.

Round-trip from

$244
(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
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 March 26, 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

IslipNew York

ISP - LGA

ISPLGA

Islip Long Island

Wed 4/22

11:50 am-8:59 pm

2 stops9h 09m

New York LaGuardia

Wed 4/29

8:25 pm-9:33 am

1 stop13h 08m

$208

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Wed 5/13

11:00 am-11:37 pm

1 stop12h 37m

Philadelphia

Fri 5/15

8:35 pm-10:05 am

2 stops13h 30m

$226

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Sat 5/16

6:43 pm-1:06 am

1 stop30h 23m

Philadelphia

Wed 5/20

5:10 pm-10:05 am

1 stop16h 55m

$244

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Thu 4/23

4:07 pm-7:41 am

1 stop15h 34m

Philadelphia

Thu 4/30

7:00 am-9:13 am

2 stops26h 13m

$251

IslipNew York

ISP - LGA

ISPLGA

Islip Long Island

Thu 5/28

11:00 am-10:15 pm

1 stop11h 15m

New York LaGuardia

Thu 6/4

3:29 pm-10:05 am

1 stop18h 36m

$269

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Sat 5/16

11:57 am-8:54 am

2 stops20h 57m

Philadelphia

Wed 5/20

10:11 am-10:05 am

1 stop23h 54m

$278

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Sun 5/17

11:00 am-8:56 am

1 stop21h 56m

Philadelphia

Mon 5/18

7:22 pm-4:47 pm

1 stop21h 25m

$307

IslipNew York

ISP - LGA

ISPLGA

Islip Long Island

Fri 6/5

11:00 am-10:15 pm

1 stop11h 15m

New York LaGuardia

Mon 6/8

8:29 pm-3:56 pm

1 stop19h 27m

$332

IslipNew York

ISP - LGA

ISPLGA

Islip Long Island

Mon 4/20

10:08 am-10:11 pm

1 stop12h 03m

New York LaGuardia

Mon 4/27

7:00 am-3:12 pm

1 stop8h 12m

$355

IslipNew York

ISP - LGA

ISPLGA

Islip Long Island

Fri 6/5

11:00 am-11:14 pm

2 stops12h 14m

New York LaGuardia

Mon 6/8

8:29 pm-3:56 pm

1 stop19h 27m

$369

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Showing 1-10 of 48 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 6h 41m. Your travel time can differ by up to 5h 33m. 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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