HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
New Jersey

$79+ 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — EWR
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Islip to New Jersey with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 August 18, 2025.

Round-trip from

$161
(Frontier)

One-way from

$79
(Frontier)
From Islip Long Island to New Jersey
Search Deals
One-way flight from Islip Long Island to New Jersey
Search Deals

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 August 18, 2025.

This Frontier deal was found by Cheapflights users on 8/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1111:25 amISP - PHL
1 stop7h 43mFrontier
Mon 9/158:00 amPHL - ISP
1 stop8h 27mFrontier
Deal found 8/16$161
This Frontier deal was found by Cheapflights users on 8/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/611:40 amISP - PHL
1 stop7h 57mFrontier
Sun 9/75:01 amPHL - ISP
1 stop11h 26mFrontier
Deal found 8/16$168
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 9/265:05 pmISP - JFK
1 stop17h 21mFrontier
Tue 9/306:59 amJFK - ISP
1 stop27h 41mFrontier
Deal found 8/18$195
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 10/45:05 pmISP - JFK
1 stop17h 21mFrontier
Tue 10/76:59 amJFK - ISP
1 stop13h 43mFrontier
Deal found 8/18$212
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 9/411:45 amISP - LGA
1 stop8h 44mMultiple Airlines
Wed 9/106:30 amLGA - ISP
1 stop28h 10mMultiple Airlines
Deal found 8/18$219
This Expedia deal was found by Cheapflights users on 8/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/149:49 amISP - PHL
2 stops11h 43mFrontier
Sun 9/215:01 amPHL - ISP
1 stop11h 26mFrontier
Deal found 8/17$233
This Kiwi.com deal was found by Cheapflights users on 8/17. 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.
Mon 10/65:05 pmISP - LGA
1 stop15h 55mMultiple Airlines
Thu 10/99:59 amLGA - ISP
1 stop10h 43mMultiple Airlines
Deal found 8/17$245
This Kiwi.com deal was found by Cheapflights users on 8/17. 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.
Mon 9/17:27 pmISP - PHL
1 stop23h 30mFrontier
Fri 9/510:16 pmPHL - ISP
1 stop12h 39mFrontier
Deal found 8/17$250
This JetBlue deal was found by Cheapflights users on 8/15. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/511:35 amISP - JFK
1 stop9h 26mJetBlue
Sat 9/66:30 amJFK - ISP
1 stop8h 53mJetBlue
Deal found 8/15$256
This Kiwi.com deal was found by Cheapflights users on 8/17. 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.
Mon 9/17:27 pmISP - PHL
2 stops16h 03mMultiple Airlines
Fri 9/58:43 pmPHL - ISP
1 stop14h 12mMultiple Airlines
Deal found 8/17$263
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 10/84:58 pmISP - JFK
1 stop17h 26mFrontier
Sun 10/126:59 amJFK - ISP
1 stop13h 53mFrontier
Deal found 8/18$286
This Kiwi.com deal was found by Cheapflights users on 8/17. 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.
Mon 10/65:05 pmISP - JFK
1 stop17h 19mFrontier
Thu 10/96:59 amJFK - ISP
1 stop13h 43mFrontier
Deal found 8/17$296

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 August 18, 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

Thu 9/11

11:25 am-7:08 pm

1 stop7h 43m

Philadelphia

Mon 9/15

8:00 am-4:27 pm

1 stop8h 27m

$161

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Sun 9/14

5:12 pm-12:59 am

1 stop7h 47m

Philadelphia

Sun 9/21

6:30 pm-10:40 am

1 stop16h 10m

$168

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Sat 9/6

11:40 am-7:37 pm

1 stop7h 57m

Philadelphia

Sun 9/7

5:01 am-4:27 pm

1 stop11h 26m

$168

IslipNew York

ISP - LGA

ISPLGA

Islip Long Island

Thu 9/4

11:45 am-8:29 pm

1 stop8h 44m

New York LaGuardia

Wed 9/10

6:30 am-10:40 am

1 stop28h 10m

$219

IslipNew York

ISP - LGA

ISPLGA

Islip Long Island

Mon 10/6

5:05 pm-9:00 am

1 stop15h 55m

New York LaGuardia

Thu 10/9

9:59 am-8:42 pm

1 stop10h 43m

$245

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Mon 9/1

7:27 pm-6:57 pm

1 stop23h 30m

Philadelphia

Fri 9/5

10:16 pm-10:55 am

1 stop12h 39m

$250

IslipNew York

ISP - JFK

ISPJFK

Islip Long Island

Fri 9/5

11:35 am-9:01 pm

1 stop9h 26m

New York John F Kennedy Intl

Sat 9/6

6:30 am-3:23 pm

1 stop8h 53m

$256

IslipPhiladelphia

ISP - PHL

ISPPHL

Islip Long Island

Mon 9/1

7:27 pm-11:30 am

2 stops16h 03m

Philadelphia

Fri 9/5

8:43 pm-10:55 am

1 stop14h 12m

$263

IslipNew York

ISP - JFK

ISPJFK

Islip Long Island

Mon 10/6

5:05 pm-10:24 am

1 stop17h 19m

New York John F Kennedy Intl

Thu 10/9

6:59 am-8:42 pm

1 stop13h 43m

$296

IslipNew York

ISP - LGA

ISPLGA

Islip Long Island

Mon 9/1

7:27 pm-9:00 am

1 stop13h 33m

New York LaGuardia

Fri 9/5

9:59 am-10:55 am

1 stop24h 56m

$319

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

Showing 1-10 of 31 results
1
2
3
4

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 43m. Your travel time can differ by up to 1h 43m. 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.

  • What is the cheapest month to book a flight from Islip, New York to New Jersey?

    Currently, January is the cheapest month in which you can book a flight from Islip, New York to New Jersey (average of $228). Flying from Islip, New York to New Jersey in June is currently the most expensive (average of $301). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Islip to New Jersey

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Los Angeles flights
John F Kennedy Intl to Miami flights
John F Kennedy Intl to Las Vegas flights
John F Kennedy Intl to O'Hare Intl flights
Newark to Fort Lauderdale flights
Newark to Los Angeles flights
John F Kennedy Intl to Dallas/Fort Worth flights
John F Kennedy Intl to Orlando flights
Newark to Miami flights
Newark to O'Hare Intl flights
LaGuardia to Dallas/Fort Worth flights
LaGuardia to Fort Lauderdale flights
Newark to Las Vegas flights
LaGuardia to O'Hare Intl flights
John F Kennedy Intl to San Francisco flights
LaGuardia to Miami flights
Newark to Orlando flights
LaGuardia to Atlanta flights
Newark to San Francisco flights
John F Kennedy Intl to Atlanta flights
John F Kennedy Intl to Fort Lauderdale flights
LaGuardia to Orlando flights
John F Kennedy Intl to Denver flights
Newark to Dallas/Fort Worth flights
John F Kennedy Intl to Sky Harbor Intl flights
LaGuardia to Los Angeles flights
John F Kennedy Intl to Seattle flights
LaGuardia to Denver flights
Newark to Denver flights
LaGuardia to Las Vegas flights
John F Kennedy Intl to West Palm Beach flights
Newark to Sky Harbor Intl flights
Newark to Seattle flights
Newark to Atlanta flights
John F Kennedy Intl to New Orleans flights
Newark to Tampa flights
John F Kennedy Intl to Tampa flights
John F Kennedy Intl to Ontario flights
Newark to Hobby flights
LaGuardia to Nashville flights
John F Kennedy Intl to Hobby flights
John F Kennedy Intl to San Diego flights
Newark to Nashville flights
LaGuardia to Hobby flights
John F Kennedy Intl to Honolulu flights
LaGuardia to West Palm Beach flights
LaGuardia to New Orleans flights
Newark to George Bush Intcntl flights
LaGuardia to Tampa flights
John F Kennedy Intl to Midway flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2025 Cheapflights