$104 Cheap Flights from Islip (ISP) to Newark Liberty Intl. Airport (EWR)

View $104 flight on Wed, Nov 19, 2025Opens in a new window

Popular airlines from MacArthur Airport (ISP) to Newark Liberty Intl. Airport (EWR)

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Cheap Flights from Islip to Newark Liberty Intl. Airport (ISP-EWR)

Prices were available within the past 7 days and start at $104 for one-way flights and $242 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Sat, Nov 15 - Mon, Nov 17
ISP
Islip
EWR
New York
$242 Roundtrip, found 4 days ago
$242
Roundtrip
found 4 days ago
Select JetBlue Airways flight, departing Sat, Nov 15 from Islip to New York, returning Mon, Nov 17, priced at $242 found 4 days ago
JetBlue Airways
Wed, Nov 19 - Wed, Dec 3
ISP
Islip
EWR
New York
$260 Roundtrip, found 4 days ago
$260
Roundtrip
found 4 days ago
Select JetBlue Airways flight, departing Wed, Nov 19 from Islip to New York, returning Wed, Dec 3, priced at $260 found 4 days ago
JetBlue Airways
Wed, Nov 19 - Thu, Dec 4
ISP
Islip
EWR
New York
$262 Roundtrip, found 4 days ago
$262
Roundtrip
found 4 days ago
Select JetBlue Airways flight, departing Wed, Nov 19 from Islip to New York, returning Thu, Dec 4, priced at $262 found 4 days ago
JetBlue Airways
Tue, Nov 18 - Wed, Dec 3
ISP
Islip
EWR
New York
$265 Roundtrip, found 4 days ago
$265
Roundtrip
found 4 days ago
Select JetBlue Airways flight, departing Tue, Nov 18 from Islip to New York, returning Wed, Dec 3, priced at $265 found 4 days ago
JetBlue Airways
Sat, Nov 15 - Mon, Nov 24
ISP
Islip
EWR
New York
$267 Roundtrip, found 4 days ago
$267
Roundtrip
found 4 days ago
Select JetBlue Airways flight, departing Sat, Nov 15 from Islip to New York, returning Mon, Nov 24, priced at $267 found 4 days ago
JetBlue Airways
Tue, Dec 16 - Mon, Jan 5
ISP
Islip
EWR
New York
$272 Roundtrip, found 4 days ago
$272
Roundtrip
found 4 days ago
Select JetBlue Airways flight, departing Tue, Dec 16 from Islip to New York, returning Mon, Jan 5, priced at $272 found 4 days ago
JetBlue Airways
Sat, Nov 15 - Wed, Nov 19
ISP
Islip
EWR
New York
$275 Roundtrip, found 4 days ago
$275
Roundtrip
found 4 days ago
Select JetBlue Airways flight, departing Sat, Nov 15 from Islip to New York, returning Wed, Nov 19, priced at $275 found 4 days ago
JetBlue Airways
Wed, Nov 19 - Tue, Dec 2
ISP
Islip
EWR
New York
$277 Roundtrip, found 4 days ago
$277
Roundtrip
found 4 days ago
Select JetBlue Airways flight, departing Wed, Nov 19 from Islip to New York, returning Tue, Dec 2, priced at $277 found 4 days ago
JetBlue Airways
Wed, Nov 19 - Fri, Dec 5
ISP
Islip
EWR
New York
$280 Roundtrip, found 4 days ago
$280
Roundtrip
found 4 days ago
Select JetBlue Airways flight, departing Wed, Nov 19 from Islip to New York, returning Fri, Dec 5, priced at $280 found 4 days ago
JetBlue Airways
Mon, Nov 24 - Mon, Dec 8
ISP
Islip
EWR
New York
$282 Roundtrip, found 4 days ago
$282
Roundtrip
found 4 days ago
Select JetBlue Airways flight, departing Mon, Nov 24 from Islip to New York, returning Mon, Dec 8, priced at $282 found 4 days ago

Alternative airports near New York

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to John F. Kennedy Intl. JFK. Average driving time to city center is 24 minutes. Flights from $365
JFK
John F. Kennedy Intl.
Average driving time to city center24 min
Flights from $365
Select flight to LaGuardia LGA. Cheapest option available. Average driving time to city center is 14 minutes. Flights from $346
LGA
LaGuardia
Cheapest
Average driving time to city center14 min
Flights from $346

Frequently asked questions

How much does a flight from MacArthur Airport (ISP) to Liberty Intl. Airport (EWR) cost?
Grab a cheap one-way flight from $104 or cheap return flight from $242 from MacArthur Airport (ISP) to Liberty Intl. Airport (EWR) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from MacArthur Airport (ISP) to Liberty Intl. Airport (EWR)?
November is the most affordable month to fly from ISP to EWR. Traveling during quieter months is often the key to landing a great deal.
What is the cheapest airline that flies from MacArthur Airport (ISP) to Liberty Intl. Airport (EWR)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest ISP to EWR flight.
How many flights per day from MacArthur Airport (ISP) to Liberty Intl. Airport (EWR)?
Direct flights from MacArthur Airport (ISP) to Liberty Intl. Airport (EWR) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from ISP to EWR?
You'll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from MacArthur Airport (ISP) to Liberty Intl. Airport (EWR)?
Book a flight from MacArthur Airport (ISP) to Liberty Intl. Airport (EWR) that leaves before 3 PM to reduce the risk of delays and cancellations. Departures after this hour have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from MacArthur Airport (ISP) to Liberty Intl. Airport (EWR) last-minute?
Holding off until right before your break to book a ticket from ISP to EWR often results in higher prices. Although you may find some last-minute discounts, they aren't always guaranteed. Be flexible with your travel plans for a better chance of snagging a bargain.
Is it cheaper to book an ISP to EWR flight and hotel package?
You'll typically save money by securing an ISP to EWR flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. After selecting your ideal accommodations and flights, you can add extras such as tours, activities and car rentals.
Can I cancel or change the date of my flight from MacArthur Airport (ISP) to Liberty Intl. Airport (EWR)?
Usually, it's possible to cancel or reschedule your ISP to EWR flight. However, for bookings made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
MacArthur
Destination airport
Newark Liberty Intl. Airport
Airlines serving
JetBlue Airways
Roundtrip price
$242
Distance
56 mi

Book with confidence

Islip to Newark Liberty Intl. Airport Flights

The cheapest times to fly from Islip to Newark Liberty Intl. Airport

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Islip to Newark Liberty Intl. Airport are during the month of November. You can find some of the cheapest flights from Islip to Newark Liberty Intl. Airport with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Islip to Newark Liberty Intl. Airport

Sunday is one of the best days to book for cheap flights from Islip to Newark Liberty Intl. Airport: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Islip to Newark Liberty Intl. Airport

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Islip to Newark Liberty Intl. Airport in 2025. You can also book with separate airlines for your outbound and return journeys, from $104 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Islip to Newark Liberty Intl. Airport flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Islip to Newark Liberty Intl. Airport airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Islip to Newark Liberty Intl. Airport Flights

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*Available to One Key members.