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$110+ 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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — EWR
May 18 — May 251
Mon 5/18
Mon 5/25
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 18, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/16. 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 5/18:31 pm
ISP
-
PHL
1 stop21h 10m
Frontier
Tue 5/510:11 am
PHL
-
ISP
1 stop23h 54m
Frontier
Deal found 4/16$204
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 4/248:31 pm
ISP
-
PHL
1 stop16h 21m
Frontier
Sat 4/2510:24 pm
PHL
-
ISP
1 stop10h 49m
Frontier
Deal found 4/13$234
This Kiwi.com deal was found by Cheapflights users on 4/15. 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 5/1611:57 am
ISP
-
PHL
2 stops20h 57m
Multiple Airlines
Tue 5/196:10 pm
PHL
-
ISP
1 stop15h 55m
Multiple Airlines
Deal found 4/15$240
This Kiwi.com deal was found by Cheapflights users on 4/13. 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.
Mon 5/116:59 pm
ISP
-
LGA
2 stops20h 59m
Multiple Airlines
Mon 5/188:15 pm
LGA
-
ISP
1 stop14h 45m
Multiple Airlines
Deal found 4/13$244
This Kiwi.com deal was found by Cheapflights users on 4/14. 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.
Thu 5/1411:12 am
ISP
-
LGA
1 stop10h 48m
Multiple Airlines
Wed 5/203:00 pm
LGA
-
ISP
1 stop19h 27m
Multiple Airlines
Deal found 4/14$256
This Kiwi.com deal was found by Cheapflights users on 4/15. 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.
Thu 4/308:31 pm
ISP
-
LGA
2 stops24h 28m
Multiple Airlines
Mon 5/43:00 pm
LGA
-
ISP
1 stop20h 00m
Multiple Airlines
Deal found 4/15$277
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 4/244:07 pm
ISP
-
PHL
2 stops17h 42m
Multiple Airlines
Sat 4/2510:24 pm
PHL
-
ISP
1 stop10h 49m
Multiple Airlines
Deal found 4/13$289
This Kiwi.com deal was found by Cheapflights users on 4/17. 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 5/1711:12 am
ISP
-
PHL
1 stop21h 42m
Frontier
Tue 5/1912:21 pm
PHL
-
ISP
1 stop21h 44m
Frontier
Deal found 4/17$293
This Kiwi.com deal was found by Cheapflights users on 4/16. 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.
Sat 5/1611:57 am
ISP
-
PHL
2 stops9h 31m
Multiple Airlines
Mon 5/182:57 pm
PHL
-
ISP
1 stop20h 03m
Multiple Airlines
Deal found 4/16$294
This Kiwi.com deal was found by Cheapflights users on 4/17. 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 5/38:31 pm
ISP
-
LGA
2 stops37h 29m
Multiple Airlines
Thu 5/73:00 pm
LGA
-
ISP
1 stop19h 05m
Multiple Airlines
Deal found 4/17$304
This Kiwi.com deal was found by Cheapflights users on 4/13. 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.
Mon 5/118:43 pm
ISP
-
PHL
2 stops36h 16m
Multiple Airlines
Mon 5/182:57 pm
PHL
-
ISP
1 stop20h 03m
Multiple Airlines
Deal found 4/13$307
This Kiwi.com deal was found by Cheapflights users on 4/17. 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 5/296:43 pm
ISP
-
PHL
1 stop13h 58m
Multiple Airlines
Sun 5/315:32 pm
PHL
-
ISP
2 stops19h 56m
Multiple Airlines
Deal found 4/17$310

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 18, 2026.

Round-trip from

$204
(Kiwi.com)

One-way from

$110
(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 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

Fri 5/1

8:31 pm-11:02 am

2 stops14h 31m

Philadelphia

Tue 5/5

10:11 am-10:05 am

1 stop23h 54m

$238

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Sat 5/16

11:57 am-8:54 am

2 stops20h 57m

Philadelphia

Tue 5/19

6:10 pm-10:05 am

1 stop15h 55m

$240

IslipNew York

ISP - LGA

ISPLGA

Islip Long Island

Mon 5/11

6:59 pm-3:58 pm

2 stops20h 59m

New York LaGuardia

Mon 5/18

8:15 pm-11:00 am

1 stop14h 45m

$244

IslipNew York

ISP - LGA

ISPLGA

Islip Long Island

Thu 5/14

11:12 am-10:00 pm

1 stop10h 48m

New York LaGuardia

Wed 5/20

3:00 pm-10:27 am

1 stop19h 27m

$256

IslipNew York

ISP - LGA

ISPLGA

Islip Long Island

Thu 4/30

8:31 pm-8:59 pm

2 stops24h 28m

New York LaGuardia

Mon 5/4

3:00 pm-11:00 am

1 stop20h 00m

$277

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Sun 5/17

11:12 am-8:54 am

1 stop21h 42m

Philadelphia

Tue 5/19

12:21 pm-10:05 am

1 stop21h 44m

$293

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Sat 5/16

11:57 am-9:28 pm

2 stops9h 31m

Philadelphia

Mon 5/18

2:57 pm-11:00 am

1 stop20h 03m

$294

IslipNew York

ISP - LGA

ISPLGA

Islip Long Island

Sun 5/3

8:31 pm-10:00 am

2 stops37h 29m

New York LaGuardia

Thu 5/7

3:00 pm-10:05 am

1 stop19h 05m

$304

IslipNew York

ISP - LGA

ISPLGA

Islip Long Island

Thu 4/30

4:07 pm-2:29 pm

1 stop22h 22m

New York LaGuardia

Sun 5/3

4:59 pm-1:31 pm

1 stop20h 32m

$314

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Mon 5/11

2:28 pm-1:20 pm

1 stop22h 52m

Philadelphia

Mon 5/18

2:57 pm-11:00 am

1 stop20h 03m

$330

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 50 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 9h 24m. Your travel time can differ by up to 5h 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 - 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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Alternative routes for Islip to New Jersey

See prices for flight routes from nearby airports that may be better suited for you.
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