In terms of precipitation, rainfall in Islip 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 when rainfall is around 3.3 in.

If weather is an important factor for your trip to Islip, 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 are the most popular routes from Canada to Islip?

While some choose either Ottawa - Islip Long Island or Montreal Pierre Elliott Trudeau Intl - Islip Long Island, Edmonton - Islip Long Island is the most popular route from Canada to Islip.

How far in advance should I book a flight from Canada to Islip?

To save up to 63% on this flight, we recommend booking at least 61 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Canada to Islip from $235 1-2 weeks out and tickets from $350 for flights departing within the next 72 hours.

What is the cheapest month to fly from Canada to Islip?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, May can be a great choice for travel to Islip. Flights to Islip from Canada in May are about $223 on average during May, but can be found for as low as $118.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Canada to Islip as you normally would.

What airport do you fly into for flights to Islip from Canada?

Islip Long Island (ISP), located 7.2 mi from the city center, is the airport you fly into when you book flights from Canada to Islip.

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

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

How can I find direct flights from Canada to Islip?

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

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

Yes. Cheapflights offers flight deals from Canada 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.

$159+ Cheap Flights from Canada to Islip

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Cheap flight deals from Canada to Islip

Popular in	December
Cheapest in	May
Average price	$234

Highest demand for flights based on searches. 4% potential increase in price ($10 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Find flight deals from Canada to Islip

Cheapest flights from Canada to Islip
Explore the most affordable flight options available from Canada to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

Fri 9/197:15 amYYZ - ISP

1 stop27h 40mMultiple Airlines

Wed 9/2411:35 amISP - YYZ

1 stop29h 01mMultiple Airlines

Deal found 9/15

$545

Last-minute flights from Canada to Islip
Discover last-minute flight deals from Canada to Islip. Data last updated September 15, 2025 and is based on user searches.

Fri 9/197:15 amYYZ - ISP

1 stop27h 40mMultiple Airlines

Wed 9/2411:35 amISP - YYZ

1 stop29h 01mMultiple Airlines

Deal found 9/15

$545

One-way flights from Canada to Islip
Search for one-way flight options from Canada to Islip. Find affordable one-way fares based on user searches. Data last updated September 15, 2025.

Tue 10/2810:55 amYYZ - ISP

1 stop23h 42mMultiple Airlines

Deal found 9/13

$159

Fly from

Fly to

Route

Depart

Return

Price

TorontoIslip

YYZ - ISP

YYZISP

Toronto Pearson Intl

Tue 10/28

10:55 am-10:37 am

1 stop23h 42m

$159

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Best time to book a flight from Canada to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Canada 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.

Cheapflights Insights

Everything you need to know about your flight from Canada to Islip

What is the cheapest month to book a flight from Canada to Islip?

Currently, January is the cheapest month in which you can book a flight from Canada to Islip (average of $108). Flying from Canada to Islip in November is currently the most expensive (average of $213). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

What airport do you fly into for flights to Islip from Canada?
Islip Long Island (ISP), located 7.2 mi from the city center, is the airport you fly into when you book flights from Canada to Islip.
What are the most popular routes from Canada to Islip?
While some choose either Ottawa - Islip Long Island or Montreal Pierre Elliott Trudeau Intl - Islip Long Island, Edmonton - Islip Long Island is the most popular route from Canada to Islip.
Can I find deals for flights from Canada to Islip that include hotel bookings?
Yes. In addition to deals on Canada to Islip flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Canada to Islip?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Canada to Islip.
Can I find deals for business class flights from Canada to Islip?
Yes. Cheapflights offers flight deals from Canada 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.
What is the cheapest month to book a flight from Canada to Islip?
Currently, January is the cheapest month in which you can book a flight from Canada to Islip (average of $108). Flying from Canada to Islip in November is currently the most expensive (average of $213). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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$159+ Cheap flights from Canada to Islip (ISP)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/28. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Canada to Islip with Cheapflights

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Cheap flight deals from Canada to Islip

Keep the following information in mind while searching for Canada to Islip flight deals. Data was last updated September 15, 2025.

Popular in

Cheapest in

Average price

Find flight deals from Canada to Islip

Cheapest flights from Canada to IslipExplore the most affordable flight options available from Canada to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

Explore the most affordable flight options available from Canada to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

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

Best time to book a flight from Canada to Islip

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

Cheapflights Insights

Everything you need to know about your flight from Canada to Islip

What is the cheapest month to book a flight from Canada to Islip?

Related info for your journey

Find useful and relevant information for your journey from Canada 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 Canada?

What are the most popular routes from Canada to Islip?

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

How can I find direct flights from Canada to Islip?

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

What is the cheapest month to book a flight from Canada to Islip?

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Cheapest flights from Canada to Islip
Explore the most affordable flight options available from Canada to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.