In terms of precipitation, rainfall in Islip, New York ranges from 3.3 - 4.4 inches per month. March is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Islip, New York when rainfall is around 3.3 in.

If weather is an important factor for your trip to Islip, New York, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

What is the cheapest time of day to fly from ABE to ISP?

When flying from Allentown to Islip, New York, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Most accurate provider : When it comes to deals on Allentown-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 Allentown-Islip, New York flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Allentown-Islip, New York flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Allentown-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 Allentown-Islip, New York flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

How can I find direct flights from Allentown to Islip?

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

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

Yes. Cheapflights offers flight deals from Allentown 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.

$663+ Flights from Allentown to Islip, NY

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Cheap flight deals from Allentown to Islip

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Cheapest flights from Allentown to Islip
Explore the most affordable flight options available from Allentown to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 27, 2026.

Fri 3/133:27 pm

ABE

ISP

2 stops19h 43m

Multiple Airlines

Mon 3/161:22 pm

ISP

ABE

1 stop27h 22m

Multiple Airlines

Deal found 2/26

$663

Find flight deals from Allentown to Islip

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$663 (Kiwi.com)

Provider with most accurate pricing for Allentown-Bethlehem-Islip Long Island flight deals.

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Provider most trusted by Cheapflights users for Allentown-Bethlehem-Islip Long Island flights.

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From Allentown-Bethlehem to Islip Long Island

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Price

AllentownIslip

ABE - ISP

ABEISP

Allentown-Bethlehem

Fri 3/13

3:27 pm-11:10 am

2 stops19h 43m

Islip Long Island

Mon 3/16

1:22 pm-4:44 pm

1 stop27h 22m

$663

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/26

Sorted by cheapest first

Compare providers for flights from Allentown to Islip

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Allentown to Islip in February.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
Expedia	Price Accuracy1 star	Trust 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 Allentown-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 Allentown-Islip, New York flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Allentown-Islip, New York flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Allentown-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 Allentown-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 Allentown to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Allentown with our price prediction graph.

ABE-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

Can I find deals for flights from Allentown to Islip that include hotel bookings?
Yes. In addition to deals on Allentown to Islip flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Allentown to Islip?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Allentown to Islip.
Can I find deals for business class flights from Allentown to Islip?
Yes. Cheapflights offers flight deals from Allentown 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.

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$663+ Cheap flights from Allentown to Islip, NY (ABE - 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 3/13. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Allentown to Islip with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Allentown to Islip

Cheapest flights from Allentown to IslipExplore the most affordable flight options available from Allentown to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 27, 2026.

Explore the most affordable flight options available from Allentown to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 27, 2026.

Best flights from Allentown to IslipDiscover carefully curated flight deals from Allentown to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 27, 2026.

Discover carefully curated flight deals from Allentown to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 27, 2026.

Last-minute flights from Allentown to IslipDiscover last-minute flight deals from Allentown to Islip. Data last updated February 27, 2026 and is based on user searches.

Discover last-minute flight deals from Allentown to Islip. Data last updated February 27, 2026 and is based on user searches.

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Use the filters below to find and compare flights from Allentown to Islip that are best for you.

Compare providers for flights from Allentown 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 Allentown to Islip in February.

Best time to book a flight from Allentown to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Allentown with our price prediction graph.

Related info for your journey

Find useful and relevant information for your journey from Allentown to Islip. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

How can I find direct flights from Allentown to Islip?

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

Traveling to a place near Islip?

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Alternative routes for Allentown to Islip

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Complete your trip

Complete your trip to Islip by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Allentown to Islip by cabin class

Find flights from Allentown to Islip, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to Islip

Explore flights to Islip departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on February 27, 2026.

Allentown and Islip flights

Browse other Allentown and Islip flight options. Last updated on February 27, 2026.

Other flights from Allentown

Browse through other flights departing from Allentown. Flights are based on user searches made on Cheapflights and were last updated on February 27, 2026.

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Cheapest flights from Allentown to Islip
Explore the most affordable flight options available from Allentown to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 27, 2026.

Best flights from Allentown to Islip
Discover carefully curated flight deals from Allentown to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 27, 2026.

Last-minute flights from Allentown to Islip
Discover last-minute flight deals from Allentown to Islip. Data last updated February 27, 2026 and is based on user searches.