$175+ Cheap flights from Newark (EWR) to Islip, NY (ISP)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
EWR — ISP
Oct 30 — Nov 61
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Newark to Islip 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 Newark to Islip
Cheapest
Best
Last-minute
One-way
Cheapest flights from Newark to IslipExplore 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 September 30, 2026.
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 September 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/28. 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 10/296:00 am -
1 stop11h 31m
Wed 11/412:00 pm -
2 stops9h 19m
Deal found 9/28![Multiple Airlines logo]()
$376
This Mytrip deal was found by Cheapflights users on 9/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3010:14 pm -
2 stops19h 17m
Sun 11/16:33 pm -
2 stops16h 03m
Deal found 9/25![Frontier logo]()
$404
This Kiwi.com deal was found by Cheapflights users on 9/26. 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 10/245:55 am -
1 stop11h 35m
Sat 10/3112:00 pm -
2 stops9h 19m
Deal found 9/26![Multiple Airlines logo]()
$434
This Kiwi.com deal was found by Cheapflights users on 9/26. 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 10/245:55 am -
1 stop11h 35m
Sat 10/316:33 pm -
1 stop30h 30m
Deal found 9/26![Frontier logo]()
$489
This Kiwi.com deal was found by Cheapflights users on 9/27. 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 10/225:55 am -
1 stop11h 35m
Sun 10/256:25 pm -
1 stop30h 04m
Deal found 9/27![Frontier logo]()
$506
This Priceline deal was found by Cheapflights users on 9/28. 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.
Sat 11/146:00 am -
1 stop11h 31m
Fri 11/209:40 am -
1 stop11h 58m
Deal found 9/28![Multiple Airlines logo]()
$541
This Expedia deal was found by Cheapflights users on 9/28. 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.
Wed 11/410:14 pm -
2 stops19h 17m
Thu 11/56:33 pm -
2 stops16h 03m
Deal found 9/28![Frontier logo]()
$561
This Kiwi.com deal was found by Cheapflights users on 9/28. 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 11/1410:14 pm -
2 stops19h 17m
Fri 11/204:40 pm -
1 stop28h 49m
Deal found 9/28![Frontier logo]()
$594
This Kiwi.com deal was found by Cheapflights users on 9/25. 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.
Thu 10/812:17 pm -
2 stops29h 43m
Mon 10/126:55 pm -
1 stop30h 07m
Deal found 9/25![Multiple Airlines logo]()
$619
Best flights from Newark to IslipDiscover carefully curated flight deals from Newark to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 30, 2026.
Discover carefully curated flight deals from Newark to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/28. 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 10/296:00 am -
1 stop11h 31m
Wed 11/412:00 pm -
2 stops9h 19m
Deal found 9/28![Multiple Airlines logo]()
$376
This Kiwi.com deal was found by Cheapflights users on 9/26. 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 10/245:55 am -
1 stop11h 35m
Sat 10/316:33 pm -
1 stop30h 30m
Deal found 9/26![Frontier logo]()
$489
This JetBlue deal was found by Cheapflights users on 9/29. 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 10/306:00 am -
1 stop7h 38m
Tue 11/32:28 pm -
1 stop9h 30m
Deal found 9/29![JetBlue logo]()
$867
This Kiwi.com deal was found by Cheapflights users on 9/26. 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 10/245:55 am -
1 stop11h 35m
Sat 10/3112:00 pm -
2 stops9h 19m
Deal found 9/26![Multiple Airlines logo]()
$434
This Kiwi.com deal was found by Cheapflights users on 9/25. 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.
Fri 10/306:00 am -
1 stop11h 56m
Sun 11/16:33 pm -
1 stop29h 30m
Deal found 9/25![Frontier logo]()
$492
This Kiwi.com deal was found by Cheapflights users on 9/27. 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 10/225:55 am -
1 stop11h 35m
Sun 10/256:25 pm -
1 stop30h 04m
Deal found 9/27![Frontier logo]()
$506
This Mytrip deal was found by Cheapflights users on 9/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/110:14 pm -
2 stops19h 42m
Fri 11/66:54 pm -
2 stops26h 25m
Deal found 9/25![Frontier logo]()
$705
Last-minute flights from Newark to IslipDiscover last-minute flight deals from Newark to Islip. Data last updated September 30, 2026 and is based on user searches.
Discover last-minute flight deals from Newark to Islip. Data last updated September 30, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 9/25. 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.
Thu 10/812:17 pm -
2 stops29h 43m
Mon 10/126:55 pm -
1 stop30h 07m
Deal found 9/25![Multiple Airlines logo]()
$619
This Kiwi.com deal was found by Cheapflights users on 9/25. 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.
Thu 10/85:55 am -
1 stop11h 35m
Mon 10/126:55 pm -
1 stop30h 07m
Deal found 9/25![Frontier logo]()
$647
This Kiwi.com deal was found by Cheapflights users on 9/27. 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 10/225:55 am -
1 stop11h 35m
Sun 10/256:25 pm -
1 stop30h 04m
Deal found 9/27![Frontier logo]()
$506
This Kiwi.com deal was found by Cheapflights users on 9/26. 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 10/245:55 am -
1 stop11h 35m
Sat 10/3112:00 pm -
2 stops9h 19m
Deal found 9/26![Multiple Airlines logo]()
$434
This Kiwi.com deal was found by Cheapflights users on 9/26. 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 10/245:55 am -
1 stop11h 35m
Sat 10/316:33 pm -
1 stop30h 30m
Deal found 9/26![Frontier logo]()
$489
This Kiwi.com deal was found by Cheapflights users on 9/28. 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 10/296:00 am -
1 stop11h 31m
Wed 11/412:00 pm -
2 stops9h 19m
Deal found 9/28![Multiple Airlines logo]()
$376
This Mytrip deal was found by Cheapflights users on 9/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3010:14 pm -
2 stops19h 17m
Sun 11/16:33 pm -
2 stops16h 03m
Deal found 9/25![Frontier logo]()
$404
One-way flights from Newark to IslipSearch for one-way flight options from Newark to Islip. Find affordable one-way fares based on user searches. Data last updated September 30, 2026.
Search for one-way flight options from Newark to Islip. Find affordable one-way fares based on user searches. Data last updated September 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/28. 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 11/910:14 pm -
2 stops37h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Multiple Airlines logo]()
$175
This Kiwi.com deal was found by Cheapflights users on 9/26. 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 10/2310:29 pm -
2 stops19h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/26![Frontier logo]()
$245
This Mytrip deal was found by Cheapflights users on 9/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:00 am -
1 stop11h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Frontier logo]()
$257
This Kiwi.com deal was found by Cheapflights users on 9/26. 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 10/231:45 pm -
3 stops21h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/26![Multiple Airlines logo]()
$314
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 September 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $376 (Kiwi.com) |
One-way from | $175 (Kiwi.com) |
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 7,457,451 searches. Data last updated September 30, 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
Cheapest round-trip
NewarkIslip
EWR Newark - ISP Islip Long Island
EWRISP
Newark
Mon 11/9
10:14 pm-11:20 am
2 stops37h 06m
Islip Long Island
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$175
NewarkIslip
EWR Newark - ISP Islip Long Island
EWRISP
Newark
Fri 10/23
10:29 pm-5:30 pm
2 stops19h 01m
Islip Long Island
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$245
NewarkIslip
EWR Newark - ISP Islip Long Island
EWRISP
Newark
Fri 10/23
1:45 pm-11:20 am
3 stops21h 35m
Islip Long Island
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$314
NewarkIslip
EWR Newark - ISP Islip Long Island
EWRISP
Newark
Thu 10/29
6:00 am-5:31 pm
1 stop11h 31m
Islip Long Island
Wed 11/4
12:00 pm-9:19 pm
2 stops9h 19m
$376
NewarkIslip
EWR Newark - ISP Islip Long Island
EWRISP
Newark
Sat 10/24
5:55 am-5:30 pm
1 stop11h 35m
Islip Long Island
Sat 10/31
12:00 pm-9:19 pm
2 stops9h 19m
$434
NewarkIslip
EWR Newark - ISP Islip Long Island
EWRISP
Newark
Sat 10/24
5:55 am-5:30 pm
1 stop11h 35m
Islip Long Island
Sat 10/31
6:33 pm-1:03 am
1 stop30h 30m
$489
NewarkIslip
EWR Newark - ISP Islip Long Island
EWRISP
Newark
Fri 10/30
6:00 am-5:56 pm
1 stop11h 56m
Islip Long Island
Sun 11/1
6:33 pm-12:03 am
1 stop29h 30m
$492
NewarkIslip
EWR Newark - ISP Islip Long Island
EWRISP
Newark
Thu 10/22
5:55 am-5:30 pm
1 stop11h 35m
Islip Long Island
Sun 10/25
6:25 pm-12:29 am
1 stop30h 04m
$506
NewarkIslip
EWR Newark - ISP Islip Long Island
EWRISP
Newark
Sun 11/1
10:14 pm-5:56 pm
2 stops19h 42m
Islip Long Island
Fri 11/6
6:54 pm-9:19 pm
2 stops26h 25m
$705
Quickest round-trip
NewarkIslip
EWR Newark - ISP Islip Long Island
EWRISP
Newark
Fri 10/30
6:00 am-1:38 pm
1 stop7h 38m
Islip Long Island
Tue 11/3
2:28 pm-11:58 pm
1 stop9h 30m
$867
Sorted by cheapest first
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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- 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.
EWR-ISP
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.
Traveling to a place near Islip?
Book flights to Islip if you plan to visit one of these locationsRiverhead
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
Complete your trip
Flights by cabin class
Islip flight routes
Other flight options
Other flights from Newark
Popular flights