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Islip

$248+ Cheap flights from Newark (EWR) to Islip, NY (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 5/29. Fares are subject to change and may not be available on all flights or dates of travel.
EWR — ISP
Jun 15 — Jun 221
Mon 6/15
Mon 6/22
1 adult, Economy
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Cheap flight deals from Newark to Islip

Cheapest flights from Newark to Islip
Explore the most affordable flight options available from Newark to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 16, 2026.

This Kiwi.com deal was found by Cheapflights users on 5/13. 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.
Thu 6/1111:30 am
EWR
-
ISP
1 stop9h 27m
Frontier
Sun 6/149:52 pm
ISP
-
EWR
1 stop12h 38m
Frontier
Deal found 5/13$371
This Kiwi.com deal was found by Cheapflights users on 5/15. 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 6/1111:30 am
EWR
-
ISP
1 stop9h 27m
Frontier
Fri 6/129:52 pm
ISP
-
EWR
1 stop12h 38m
Frontier
Deal found 5/15$384
This Kiwi.com deal was found by Cheapflights users on 5/16. 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 6/1311:30 am
EWR
-
ISP
1 stop9h 27m
Frontier
Sat 6/209:52 pm
ISP
-
EWR
1 stop12h 38m
Frontier
Deal found 5/16$434
This Kiwi.com deal was found by Cheapflights users on 5/13. 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.
Sat 6/2011:30 am
EWR
-
ISP
1 stop9h 27m
Frontier
Sun 6/219:52 pm
ISP
-
EWR
1 stop12h 38m
Frontier
Deal found 5/13$480
This Kiwi.com deal was found by Cheapflights users on 5/16. 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 6/1311:30 am
EWR
-
ISP
1 stop9h 27m
Multiple Airlines
Sat 6/2011:57 am
ISP
-
EWR
2 stops22h 33m
Multiple Airlines
Deal found 5/16$484
This JetBlue deal was found by Cheapflights users on 5/12. 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 8/253:55 pm
EWR
-
ISP
1 stop7h 01m
JetBlue
Wed 8/266:00 am
ISP
-
EWR
1 stop8h 29m
JetBlue
Deal found 5/12$488
This Expedia deal was found by Cheapflights users on 5/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/136:29 am
EWR
-
ISP
1 stop8h 15m
JetBlue
Sat 6/202:22 pm
ISP
-
EWR
1 stop9h 27m
JetBlue
Deal found 5/14$533
This Kiwi.com deal was found by Cheapflights users on 5/15. 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.
Fri 6/1210:29 pm
EWR
-
ISP
2 stops12h 48m
Multiple Airlines
Sun 6/149:52 pm
ISP
-
EWR
1 stop12h 38m
Multiple Airlines
Deal found 5/15$541
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 7/1911:30 am
EWR
-
ISP
1 stop22h 28m
Multiple Airlines
Sun 7/267:49 pm
ISP
-
EWR
2 stops25h 39m
Multiple Airlines
Deal found 5/12$542
This Kiwi.com deal was found by Cheapflights users on 5/15. 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 6/1110:29 pm
EWR
-
ISP
2 stops14h 59m
Multiple Airlines
Fri 6/129:52 pm
ISP
-
EWR
1 stop12h 38m
Multiple Airlines
Deal found 5/15$552

Find flight deals from Newark to Islip

Discover tips and strategies to find the most affordable flight options for your journey from Newark (EWR) to Islip (ISP). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$371
(Kiwi.com)

One-way from

$248
(Kiwi.com)
Provider with most accurate pricing for Newark-Islip Long Island flight deals.
Search Deals
Provider most trusted by Cheapflights users for Newark-Islip Long Island flights.
Search Deals
From Newark to Islip Long Island
Search Deals
One-way flight from Newark to Islip Long Island
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Newark 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 May 16, 2026.
Use the filters below to find and compare flights from Newark Airport to Islip that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

NewarkIslip

EWR - ISP

EWRISP

Newark

Thu 6/11

11:30 am-8:57 pm

1 stop9h 27m

Islip Long Island

Fri 6/12

9:52 pm-10:30 am

1 stop12h 38m

$384

NewarkIslip

EWR - ISP

EWRISP

Newark

Thu 6/11

5:58 am-8:57 pm

2 stops14h 59m

Islip Long Island

Sun 6/14

9:52 pm-10:30 am

1 stop12h 38m

$393

NewarkIslip

EWR - ISP

EWRISP

Newark

Sat 6/13

11:30 am-8:57 pm

1 stop9h 27m

Islip Long Island

Sat 6/20

9:52 pm-10:30 am

1 stop12h 38m

$434

NewarkIslip

EWR - ISP

EWRISP

Newark

Sat 6/20

11:30 am-8:57 pm

1 stop9h 27m

Islip Long Island

Sun 6/21

9:52 pm-10:30 am

1 stop12h 38m

$480
Quickest round-trip

NewarkIslip

EWR - ISP

EWRISP

Newark

Tue 7/28

3:55 pm-10:56 pm

1 stop7h 01m

Islip Long Island

Thu 7/30

6:00 am-2:29 pm

1 stop8h 29m

$533

NewarkIslip

EWR - ISP

EWRISP

Newark

Fri 6/12

10:29 pm-11:17 am

2 stops12h 48m

Islip Long Island

Sun 6/14

9:52 pm-10:30 am

1 stop12h 38m

$541

NewarkIslip

EWR - ISP

EWRISP

Newark

Sun 7/19

11:30 am-9:58 am

1 stop22h 28m

Islip Long Island

Sun 7/26

7:49 pm-9:28 pm

2 stops25h 39m

$542

NewarkIslip

EWR - ISP

EWRISP

Newark

Sun 7/19

11:30 am-9:58 am

1 stop22h 28m

Islip Long Island

Sun 7/26

10:48 am-10:31 am

1 stop23h 43m

$561

NewarkIslip

EWR - ISP

EWRISP

Newark

Thu 5/28

6:00 am-1:39 pm

1 stop7h 39m

Islip Long Island

Sat 6/20

2:22 pm-11:49 pm

1 stop9h 27m

$568

NewarkIslip

EWR - ISP

EWRISP

Newark

Thu 5/28

6:00 am-1:39 pm

1 stop7h 39m

Islip Long Island

Tue 6/23

3:07 pm-11:21 pm

1 stop8h 14m

$638

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/16

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

Compare providers for flights from Newark to Islip

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Newark to Islip in May.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Newark Airport-Islip, New York flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Newark Airport-Islip, New York flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Newark Airport-Islip, New York flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Newark Airport-Islip, New York flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Newark Airport-Islip, New York flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Newark to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Newark 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.

Related info for your journey

Find useful and relevant information for your journey from Newark 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 Newark?

    Most people fly into Islip Long Island (ISP) if they book a flight to Islip from Newark. On average, Long Island has 0 inbound flights from Newark per day from 0 airlines. Islip Long Island is conveniently located just 7.2 mi from Islip’s city center.

  • How long is the flight from Newark Airport to Islip, New York?

    Frontier and JetBlue can get you from Newark Airport to Islip, New York in just under 7h 01m. Your travel time can differ by up to 2h 26m. Newark Airport and Islip, New York are separated by a distance of 57 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

  • How can I find direct flights from Newark to Islip?

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

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

    Yes. Cheapflights offers flight deals from Newark 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.

See more FAQs

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