$494 Cheap Flights from Allentown (ABE) to Islip (ISP)

View $494 flight on Sun, Nov 16, 2025Opens in a new window

Popular airlines from Lehigh Valley Intl. Airport (ABE) to MacArthur Airport (ISP)

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Cheap Flights from Allentown to Islip (ABE-ISP)

Prices were available within the past 7 days and start at $494 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Lehigh Valley Intl. Airport (ABE) to MacArthur Airport (ISP) cost?
Lock in a cheap one-way flight from $494 or cheap return flight from Lehigh Valley Intl. Airport (ABE) to MacArthur Airport (ISP) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Lehigh Valley Intl. Airport (ABE) to MacArthur Airport (ISP)?
is the cheapest month to fly from ABE to ISP. Traveling outside of peak seasons is often the key to better flight prices.
What is the cheapest airline that flies from Lehigh Valley Intl. Airport (ABE) to MacArthur Airport (ISP)?
To find the cheapest airline that'll fly you from ABE to ISP, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Lehigh Valley Intl. Airport (ABE) to MacArthur Airport (ISP)?
Nonstop flights from Lehigh Valley Intl. Airport (ABE) 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 pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from ABE to ISP?
Typically you'll find the largest variety of flight choices on a Friday. Tuesdays are often the quietest.* But this can change depending on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lehigh Valley Intl. Airport (ABE) to MacArthur Airport (ISP)?
To arrive at MacArthur Airport (ISP) on time, opt for a flight that leaves from Lehigh Valley Intl. Airport (ABE) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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 Lehigh Valley Intl. Airport (ABE) to MacArthur Airport (ISP) last-minute?
Holding off until right before your break to book a ticket from ABE to ISP often results in higher prices. While you may come across some last-minute discounts, there's no guarantee. Be flexible with your itinerary for a better chance of getting a bargain.
Is it cheaper to book an ABE to ISP flight and hotel package?
Compared with arranging hotels and flights separately, booking an ABE to ISP flight and hotel package with Expedia could result in significant savings. Better yet, having it all in one place will take the stress out of planning your trip. Just secure your flights and select from our wide range of hotels, then tailor your trip with other add-ons like car rentals and activities.
Can I cancel or change the date of my flight from Lehigh Valley Intl. Airport (ABE) to MacArthur Airport (ISP)?
If you booked your ABE to ISP flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond 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.

Travel information

Origin airport
Lehigh Valley Intl.
Destination airport
MacArthur
Distance
122 mi

Book with confidence

Allentown to Islip Flights

The cheapest times to fly from Allentown to Islip

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 Allentown to Islip are during the month of . You can find some of the cheapest flights from Allentown to Islip with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Allentown to Islip

Sunday is one of the best days to book for cheap flights from Allentown to Islip: 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 Allentown to Islip

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 Allentown to Islip in 2025. You can also book with separate airlines for your outbound and return journeys, from $494 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 Allentown to Islip 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 Allentown to Islip 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.

 

Allentown to Islip Flights

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