$130 Cheap Flights from Newark Liberty Intl. Airport (EWR) to Islip (ISP)

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Find available prices by choosing your travel dates.

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

Prices were available within the past 7 days and start at $130 for one-way flights and $229 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

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Frequently asked questions

How much does a flight from Liberty Intl. Airport (EWR) to MacArthur Airport (ISP) cost?
Discover the latest flight deals from EWR to ISP by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from EWR to ISP?
The cheapest flights from EWR to ISP are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from EWR to ISP?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from EWR to ISP. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Liberty Intl. Airport (EWR) to MacArthur Airport (ISP)?
Direct flights from Liberty Intl. Airport (EWR) to MacArthur Airport (ISP) aren’t available daily, so you’ll have to take a flight with a layover. Explore your options with Expedia’s filter tool. Enter your travel details and choose either “1 Stop” or “2+ Stops.”
What day of the week has the most flights from EWR to ISP?
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 peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Liberty Intl. Airport (EWR) to MacArthur Airport (ISP)?
Book a flight from Liberty Intl. Airport (EWR) to MacArthur Airport (ISP) that leaves before 3 PM to reduce the likelihood of delays. Departures later than this 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 Liberty Intl. Airport (EWR) to MacArthur Airport (ISP) last-minute?
Booking your ticket from EWR to ISP right before your trip is generally more expensive. However, if there’s some wiggle room with your travel times and dates, you could score a cheap last-minute fare.
Is it cheaper to book an EWR to ISP flight and hotel package?
You’ll typically save money by securing an EWR to ISP flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it’s easy to manage everything in one convenient place. After choosing your preferred accommodations and flights, you can add extras like car rentals, activities and tours.
Can I cancel or change the date of my flight from Liberty Intl. Airport (EWR) to MacArthur Airport (ISP)?
If you reserved your EWR to ISP flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of ticket you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you’d like more information.
*Available to One Key members.