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 LGA to ISP?

When flying from New York LaGuardia Airport 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 New York LaGuardia Airport-Islip, New York flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on New York LaGuardia Airport-Islip, New York flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from New York LaGuardia Airport-Islip, New York flight searches over the past month and is updated monthly.

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

What airport do you fly into for flights to Islip from New York LaGuardia?

Most people fly into Islip Long Island (ISP) if they book a flight to Islip from New York LaGuardia. On average, Long Island has 0 inbound flights from New York LaGuardia per day from 0 airlines. Islip Long Island is conveniently located just 7.2 mi from Islip’s city center.

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

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

How can I find direct flights from LaGuardia to Islip?

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

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

Yes. Cheapflights offers flight deals from LaGuardia 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.

$181+ Flights from New York LaGuardia Airport, NY to Islip, NY

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Cheap flight deals from LaGuardia to Islip

Best flights from LaGuardia to Islip
Discover carefully curated flight deals from LaGuardia to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 26, 2025.

Fri 1/236:30 amLGA - ISP

1 stop14h 17mMultiple Airlines

Fri 1/309:43 pmISP - LGA

1 stop20h 15mMultiple Airlines

Deal found 12/24

$181

Last-minute flights from LaGuardia to Islip
Discover last-minute flight deals from LaGuardia to Islip. Data last updated December 26, 2025 and is based on user searches.

Fri 1/236:30 amLGA - ISP

1 stop14h 17mMultiple Airlines

Fri 1/309:43 pmISP - LGA

1 stop20h 15mMultiple Airlines

Deal found 12/24

$181

Find flight deals from LaGuardia to Islip

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$181 (Trip.com)

Provider with most accurate pricing for New York LaGuardia-Islip Long Island flight deals.

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Provider most trusted by Cheapflights users for New York LaGuardia-Islip Long Island flights.

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From New York LaGuardia to Islip Long Island

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Use the filters below to find and compare flights from New York LaGuardia Airport to Islip that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

New YorkIslip

LGA - ISP

LGAISP

New York LaGuardia

Fri 1/23

6:30 am-8:47 pm

1 stop14h 17m

Islip Long Island

Fri 1/30

9:43 pm-5:58 pm

1 stop20h 15m

$181

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/24

Compare providers for flights from LaGuardia to Islip

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

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	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 New York LaGuardia Airport-Islip, New York flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on New York LaGuardia Airport-Islip, New York flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from New York LaGuardia Airport-Islip, New York flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on New York LaGuardia Airport-Islip, New York flights, Cheapflights users trust eDreams the most. eDreams 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 New York LaGuardia 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 LaGuardia to Islip

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

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

What airport do you fly into for flights to Islip from New York LaGuardia?
Most people fly into Islip Long Island (ISP) if they book a flight to Islip from New York LaGuardia. On average, Long Island has 0 inbound flights from New York LaGuardia per day from 0 airlines. Islip Long Island is conveniently located just 7.2 mi from Islip’s city center.
Can I find deals for flights from LaGuardia to Islip that include hotel bookings?
Yes. In addition to deals on LaGuardia to Islip flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from LaGuardia to Islip?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from LaGuardia to Islip.
Can I find deals for business class flights from LaGuardia to Islip?
Yes. Cheapflights offers flight deals from LaGuardia 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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$181+ Cheap flights from LaGuardia, NY (LGA) 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 1/23. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from LaGuardia 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 LaGuardia to Islip

Best flights from LaGuardia to IslipDiscover carefully curated flight deals from LaGuardia to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 26, 2025.

Discover carefully curated flight deals from LaGuardia to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 26, 2025.

Find flight deals from LaGuardia to Islip

Most accurate provider

Most trusted provider

Round-trip from

Cheapflights Fare Finder

Use the filters below to find and compare flights from New York LaGuardia Airport to Islip that are best for you.

Compare providers for flights from LaGuardia 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 LaGuardia to Islip in December.

Best time to book a flight from LaGuardia to Islip

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

Related info for your journey

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

What airport do you fly into for flights to Islip from New York LaGuardia?

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

How can I find direct flights from LaGuardia to Islip?

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

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Best flights from LaGuardia to Islip
Discover carefully curated flight deals from LaGuardia to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 26, 2025.