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).

How far in advance should I book a flight from Quebec to Islip, New York?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 22 days in advance, which can save you up to 59% on flights from Quebec to Islip, New York compared to booking the week you need them. Waiting 22 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $279. For sooner than that we have options available in the next 3 days from $432.

What is the cheapest month to fly from Quebec to Islip, New York?

The best pricing can be found in the month of July. Prices to Islip, New York from Quebec average $268. You can even find prices in July for less than $268, as users have found deals to Islip, New York from as low as $176. The month of December appears to be one of the more expensive times to travel to Islip, New York from Quebec. Flying in the targeted month can save you up to 17%.

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

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

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

For a flight from Quebec to Islip, you will be flying into Long Island. Islip Long Island (ISP) is just 7.2 mi from the center of the city.

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

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

How can I find direct flights from Quebec to Islip?

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

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

Yes. Cheapflights offers flight deals from Quebec 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.

$177+ Cheap Flights from Quebec to Islip, NY

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Cheap flight deals from Quebec to Islip

Round-trip from	$431 (Trip.com)
One-way from	$177 (Kiwi.com)
Popular in	December
Cheapest in	July
Average price	$282

From Quebec to Islip Long Island

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One-way flight from Quebec to Islip Long Island

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Highest demand for flights based on searches. 4% potential increase in price ($13 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 August 2025

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Find flight deals from Quebec to Islip

Cheapest flights from Quebec to Islip
Explore the most affordable flight options available from Quebec to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

Fri 10/104:25 pmYOW - ISP

1 stop18h 12mMultiple Airlines

Sat 10/114:58 pmISP - YOW

1 stop23h 59mMultiple Airlines

Deal found 8/13

$431

Mon 8/186:45 amYUL - ISP

1 stop13h 07mMultiple Airlines

Tue 8/196:05 amISP - YUL

1 stop8h 15mMultiple Airlines

Deal found 8/14

$1,111

Best flights from Quebec to Islip
Discover carefully curated flight deals from Quebec to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 14, 2025.

Fri 10/104:25 pmYOW - ISP

1 stop18h 12mMultiple Airlines

Sat 10/114:58 pmISP - YOW

1 stop23h 59mMultiple Airlines

Deal found 8/13

$431

Last-minute flights from Quebec to Islip
Discover last-minute flight deals from Quebec to Islip. Data last updated August 14, 2025 and is based on user searches.

Mon 8/186:45 amYUL - ISP

1 stop13h 07mMultiple Airlines

Tue 8/196:05 amISP - YUL

1 stop8h 15mMultiple Airlines

Deal found 8/14

$1,111

One-way flights from Quebec to Islip
Search for one-way flight options from Quebec to Islip. Find affordable one-way fares based on user searches. Data last updated August 14, 2025.

Fri 9/124:25 pmYOW - ISP

1 stop18h 30mMultiple Airlines

Deal found 8/13

$177

Sat 9/276:45 amYUL - ISP

1 stop27h 55mMultiple Airlines

Deal found 8/13

$290

Sat 10/46:55 amYUL - ISP

2 stops8h 26mMultiple Airlines

Deal found 8/13

$467

Sun 10/510:45 amYUL - ISP

2 stops9h 16mMultiple Airlines

Deal found 8/13

$475

Fly from

Fly to

Route

Depart

Return

Price

OttawaIslip

YOW - ISP

YOWISP

Ottawa

Fri 10/10

4:25 pm-10:37 am

1 stop18h 12m

Islip Long Island

Sat 10/11

4:58 pm-4:57 pm

1 stop23h 59m

$431

OttawaIslip

YOW - ISP

YOWISP

Ottawa

Fri 9/12

4:25 pm-10:55 am

1 stop18h 30m

$177

MontrealIslip

YUL - ISP

YULISP

Montreal Pierre Elliott Trudeau Intl

Sat 9/27

6:45 am-10:40 am

1 stop27h 55m

$290

MontrealIslip

YUL - ISP

YULISP

Montreal Pierre Elliott Trudeau Intl

Sat 10/4

6:55 am-3:21 pm

2 stops8h 26m

$467

MontrealIslip

YUL - ISP

YULISP

Montreal Pierre Elliott Trudeau Intl

Sun 10/5

10:45 am-8:01 pm

2 stops9h 16m

$475

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Best time to book a flight from Quebec to Islip

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

What is the cheapest month to book a flight from Quebec to Islip, New York?

Currently, January is the cheapest month in which you can book a flight from Quebec to Islip, New York (average of $108). Flying from Quebec to Islip, New York 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 Quebec?
For a flight from Quebec to Islip, you will be flying into Long Island. Islip Long Island (ISP) is just 7.2 mi from the center of the city.
Can I find deals for flights from Quebec to Islip that include hotel bookings?
Yes. In addition to deals on Quebec to Islip flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Quebec to Islip?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Quebec to Islip.
Can I find deals for business class flights from Quebec to Islip?
Yes. Cheapflights offers flight deals from Quebec 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 Quebec to Islip, New York?
Currently, January is the cheapest month in which you can book a flight from Quebec to Islip, New York (average of $108). Flying from Quebec to Islip, New York 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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$177+ Cheap flights from Quebec to Islip, NY (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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Quebec 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 Quebec to Islip

Keep the following information in mind while searching for Quebec to Islip flight deals. Data was last updated August 14, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Quebec to Islip

Cheapest flights from Quebec to IslipExplore the most affordable flight options available from Quebec to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

Explore the most affordable flight options available from Quebec to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Quebec to Islip

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

Cheapflights Insights

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

What is the cheapest month to book a flight from Quebec to Islip, New York?

Related info for your journey

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

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

How can I find direct flights from Quebec to Islip?

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

What is the cheapest month to book a flight from Quebec to Islip, New York?

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Cheapest flights from Quebec to Islip
Explore the most affordable flight options available from Quebec to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.