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Islip

$102+ Cheap flights from New Jersey to Islip (ISP)

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 8/23. Fares are subject to change and may not be available on all flights or dates of travel.
EWR — ISP
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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Cheap flight deals from New Jersey to Islip

Keep the following information in mind while searching for New Jersey to Islip flight deals. Data was last updated August 20, 2025.

Round-trip from

$161
(Frontier)

One-way from

$102
(Frontier)
From New Jersey to Islip Long Island
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One-way flight from New Jersey to Islip Long Island
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Find flight deals from New Jersey to Islip

Cheapest flights from New Jersey to Islip
Explore the most affordable flight options available from New Jersey to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.

This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/35:15 pmPHL - ISP
1 stop6h 26mFrontier
Thu 9/45:12 pmISP - PHL
1 stop7h 47mFrontier
Deal found 8/18$161
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.
Tue 9/25:30 pmPHL - ISP
1 stop30h 11mFrontier
Sat 9/65:05 pmISP - PHL
1 stop14h 26mFrontier
Deal found 8/18$171
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 9/45:15 amPHL - ISP
1 stop29h 25mFrontier
Mon 9/85:05 pmISP - PHL
1 stop7h 47mFrontier
Deal found 8/20$191
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2512:43 pmPHL - ISP
1 stop21h 57mFrontier
Mon 9/295:05 pmISP - PHL
1 stop7h 47mFrontier
Deal found 8/18$199
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 9/177:57 pmEWR - ISP
1 stop14h 58mMultiple Airlines
Wed 9/2411:35 amISP - EWR
1 stop10h 24mMultiple Airlines
Deal found 8/18$199
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 9/186:59 amJFK - ISP
1 stop27h 41mFrontier
Thu 9/2511:40 amISP - JFK
1 stop22h 46mFrontier
Deal found 8/19$200
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.
Tue 9/1610:55 amEWR - ISP
1 stop23h 45mMultiple Airlines
Mon 9/225:05 pmISP - EWR
1 stop23h 35mMultiple Airlines
Deal found 8/18$201
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 9/33:46 pmPHL - ISP
1 stop7h 55mMultiple Airlines
Thu 9/411:45 amISP - PHL
2 stops23h 11mMultiple Airlines
Deal found 8/18$220
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 9/194:58 pmLGA - ISP
2 stops17h 57mMultiple Airlines
Fri 9/265:05 pmISP - LGA
1 stop18h 56mMultiple Airlines
Deal found 8/20$251
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 9/194:15 pmEWR - ISP
1 stop18h 40mMultiple Airlines
Fri 9/265:05 pmISP - EWR
1 stop16h 00mMultiple Airlines
Deal found 8/20$261
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.
Sun 8/319:59 amLGA - ISP
1 stop14h 00mMultiple Airlines
Wed 9/38:00 amISP - LGA
1 stop15h 29mMultiple Airlines
Deal found 8/17$282
This Frontier deal was found by Cheapflights users on 8/20. 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 8/219:56 pmPHL - ISP
1 stop11h 17mFrontier
Thu 8/286:05 amISP - PHL
1 stop11h 10mFrontier
Deal found 8/20$313

Cheapflights Fare Finder

 
Customize your flight search to find flights from New Jersey to Islip 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 20, 2025.
Use the filters below to find and compare flights from New Jersey to Islip that are best for you.

Fly from

New Jersey

Fly to

Islip

Route

Depart

Return

Price

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Wed 9/3

5:15 pm-11:41 pm

1 stop6h 26m

Islip Long Island

Thu 9/4

5:12 pm-12:59 am

1 stop7h 47m

$161

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Tue 9/2

5:30 pm-11:41 pm

1 stop30h 11m

Islip Long Island

Sat 9/6

5:05 pm-7:31 am

1 stop14h 26m

$171

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Thu 9/4

5:15 am-10:40 am

1 stop29h 25m

Islip Long Island

Mon 9/8

5:05 pm-12:52 am

1 stop7h 47m

$191

NewarkIslip

EWR - ISP

EWRISP

Newark

Wed 9/17

7:57 pm-10:55 am

1 stop14h 58m

Islip Long Island

Wed 9/24

11:35 am-9:59 pm

1 stop10h 24m

$199

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Thu 9/25

12:43 pm-10:40 am

1 stop21h 57m

Islip Long Island

Mon 9/29

5:05 pm-12:52 am

1 stop7h 47m

$199

New YorkIslip

JFK - ISP

JFKISP

New York John F Kennedy Intl

Thu 9/18

6:59 am-10:40 am

1 stop27h 41m

Islip Long Island

Thu 9/25

11:40 am-10:26 am

1 stop22h 46m

$200

NewarkIslip

EWR - ISP

EWRISP

Newark

Tue 9/16

10:55 am-10:40 am

1 stop23h 45m

Islip Long Island

Mon 9/22

5:05 pm-4:40 pm

1 stop23h 35m

$201

PhiladelphiaIslip

PHL - ISP

PHLISP

Philadelphia

Wed 9/3

3:46 pm-11:41 pm

1 stop7h 55m

Islip Long Island

Thu 9/4

11:45 am-10:56 am

2 stops23h 11m

$220

New YorkIslip

LGA - ISP

LGAISP

New York LaGuardia

Fri 9/19

4:58 pm-10:55 am

2 stops17h 57m

Islip Long Island

Fri 9/26

5:05 pm-12:01 pm

1 stop18h 56m

$251

NewarkIslip

EWR - ISP

EWRISP

Newark

Fri 9/19

4:15 pm-10:55 am

1 stop18h 40m

Islip Long Island

Fri 9/26

5:05 pm-9:05 am

1 stop16h 00m

$261

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Showing 1-10 of 39 results
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Best time to book a flight from New Jersey to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from New Jersey 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 New Jersey to Islip
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 New Jersey to Islip. 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 into for flights to Islip from New Jersey?

    Most people fly into Islip Long Island (ISP) if they book a flight to Islip from New Jersey. Long Island is conveniently located just 7.2 mi from Islip’s city center.

  • How long is the flight from New Jersey to Islip?

    There are many flights that can get you from New Jersey to Islip in 6h 26m. Fly via Frontier to get the fastest option. The distance between New Jersey and Islip is about 129 mi.

  • What are the most popular routes from New Jersey to Islip?

    The most popular route from New Jersey to Islip is Philadelphia - Islip Long Island. You may also consider New York John F Kennedy Intl - Islip Long Island or Newark - Islip Long Island.

  • Can I find deals for flights from New Jersey to Islip that include hotel bookings?

    Yes. In addition to deals on New Jersey to Islip flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from New Jersey to Islip?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from New Jersey to Islip.

  • Can I find deals for business class flights from New Jersey to Islip?

    Yes. Cheapflights offers flight deals from New Jersey to Islip 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 New Jersey to Islip?

    Currently, January is the cheapest month in which you can book a flight from New Jersey to Islip (average of $108). Flying from New Jersey to Islip in November is currently the most expensive (average of $213). 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

Traveling to a place near Islip?

Book flights to Islip if you plan to visit one of these locations
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Alternative routes for New Jersey to Islip

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