In terms of precipitation, rainfall in Quebec ranges from 64.0 - 111.0 mm per month. August is typically the wettest month, when rainfall can reach 111.0 mm. February is typically the driest time to visit Quebec when rainfall is around 64.0 mm.

If weather is an important factor for your trip to Quebec, 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 22.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -9.0 C).

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

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

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

Located just 11.6 km from the city centre, Islip Long Island (ISP) is the airport most travellers will use when flying to Quebec from Islip.

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

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

How can I find direct flights from Islip to Quebec?

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

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

Yes. Cheapflights offers flight deals from Islip to Quebec by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

C$ 1,212+ Cheap Flights from Islip, NY to Quebec

Cheap flight deals from Islip to Quebec

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

Cheapest flights from Islip to Quebec
Explore the most affordable flight options available from Islip to Quebec. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 August 2026.

Mon 21/97:00 a.m. -

2 stops12h 32m

Thu 24/96:45 a.m. -

2 stops16h 37m

Deal found 18/8C$ 1,212

Fri 28/810:57 a.m. -

2 stops23h 43m

Mon 31/89:20 a.m. -

1 stop8h 54m

Deal found 17/8C$ 1,253

Thu 1/107:31 a.m. -

2 stops10h 41m

Thu 8/106:30 a.m. -

2 stops11h 11m

Deal found 16/8C$ 1,403

Fri 4/97:05 a.m. -

1 stop10h 55m

Sat 5/97:20 p.m. -

1 stop17h 10m

Deal found 16/8C$ 1,476

Sat 5/99:05 a.m. -

1 stop8h 55m

Mon 7/97:20 p.m. -

1 stop15h 36m

Deal found 19/8C$ 1,510

Fri 2/107:00 a.m. -

2 stops12h 32m

Fri 9/106:45 a.m. -

2 stops14h 50m

Deal found 18/8C$ 1,648

Sun 16/87:05 a.m. -

1 stop11h 10m

Sun 23/87:00 a.m. -

2 stops11h 06m

Deal found 15/8C$ 1,666

Find flight deals from Islip to Quebec

Round-trip from	C$ 1,212
Popular in	December
Cheapest in	March
Average price	C$ 489

21/9-24/9
4 total stops
29h 09m total
Islip to Quebec

Search Deals

Highest demand for flights based on searches. 2% potential increase in price (C$ 15 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (C$ 8 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in August 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IslipMontreal

ISP Islip Long Island - YUL Montreal Pierre Elliott Trudeau Intl

ISPYUL

Islip Long Island

Mon 21/9

7:00 a.m.-7:32 p.m.

2 stops12h 32m

Montreal Pierre Elliott Trudeau Intl

Thu 24/9

6:45 a.m.-11:22 p.m.

2 stops16h 37m

C$ 1,212

Quickest round-trip

IslipMontreal

ISP Islip Long Island - YUL Montreal Pierre Elliott Trudeau Intl

ISPYUL

Islip Long Island

Thu 1/10

7:31 a.m.-6:12 p.m.

2 stops10h 41m

Montreal Pierre Elliott Trudeau Intl

Thu 8/10

6:30 a.m.-5:41 p.m.

2 stops11h 11m

C$ 1,403

IslipMontreal

ISP Islip Long Island - YUL Montreal Pierre Elliott Trudeau Intl

ISPYUL

Islip Long Island

Fri 4/9

7:05 a.m.-6:00 p.m.

1 stop10h 55m

Montreal Pierre Elliott Trudeau Intl

Sat 5/9

7:20 p.m.-12:30 p.m.

1 stop17h 10m

C$ 1,476

IslipMontreal

ISP Islip Long Island - YUL Montreal Pierre Elliott Trudeau Intl

ISPYUL

Islip Long Island

Sat 5/9

9:05 a.m.-6:00 p.m.

1 stop8h 55m

Montreal Pierre Elliott Trudeau Intl

Mon 7/9

7:20 p.m.-10:56 a.m.

1 stop15h 36m

C$ 1,510

IslipMontreal

ISP Islip Long Island - YUL Montreal Pierre Elliott Trudeau Intl

ISPYUL

Islip Long Island

Tue 15/9

10:05 a.m.-11:55 a.m.

1 stop25h 50m

Montreal Pierre Elliott Trudeau Intl

Tue 22/9

8:00 p.m.-10:56 a.m.

1 stop14h 56m

C$ 3,703

IslipMontreal

ISP Islip Long Island - YUL Montreal Pierre Elliott Trudeau Intl

ISPYUL

Islip Long Island

Thu 10/9

2:16 p.m.-8:19 p.m.

1 stop6h 03m

Montreal Pierre Elliott Trudeau Intl

Thu 17/9

4:40 p.m.-6:35 p.m.

1 stop25h 55m

C$ 3,868

Flights are sorted by cheapest round-trip flights first.

Deals found on 18/8

Sorted by cheapest first

Best time to book a flight from Islip to Quebec

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

ISP-YUL

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 Islip to Quebec

ISP-CAQC

ISP-YUL

No data available for this route at this time. Please check back soon.

Related info for your journey

What airport do you fly from for flights from Islip to Quebec?
Located just 11.6 km from the city centre, Islip Long Island (ISP) is the airport most travellers will use when flying to Quebec from Islip.
Can I find deals for flights from Islip to Quebec that include hotel bookings?
Yes. In addition to deals on Islip to Quebec flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Islip to Quebec?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Islip to Quebec.
Can I find deals for business class flights from Islip to Quebec?
Yes. Cheapflights offers flight deals from Islip to Quebec by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

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Fly with Cheapflights

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When you search for this flight from Islip to Quebec, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Islip to Quebec?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Islip to Quebec.

Can Cheapflights find flights from Islip to Quebec with no change fees?

Yes! Cheapflights helps users easily find flights from Islip to Quebec with no change fees.

Can Cheapflights notify me if prices for flights from Islip to Quebec become cheaper?

Yes! Start tracking prices for Islip to Quebec flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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Cheap flights from Islip, NY to Quebec from C$ 1,212

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 21/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Islip to Quebec

Cheapest flights from Islip to QuebecExplore the most affordable flight options available from Islip to Quebec. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 August 2026.

Explore the most affordable flight options available from Islip to Quebec. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 August 2026.

Best flights from Islip to QuebecDiscover carefully curated flight deals from Islip to Quebec that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 20 August 2026.

Discover carefully curated flight deals from Islip to Quebec that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 20 August 2026.

Last-minute flights from Islip to QuebecDiscover last-minute flight deals from Islip to Quebec. Data last updated 20 August 2026 and is based on user searches.

Discover last-minute flight deals from Islip to Quebec. Data last updated 20 August 2026 and is based on user searches.

Find flight deals from Islip to Quebec

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Cheapflights Fare Finder

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

Best time to book a flight from Islip to Quebec

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

Cheapflights Insights

Related info for your journey

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

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

How can I find direct flights from Islip to Quebec?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Islip to Quebec

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

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

Direct flights to Canada

Book a non-stop flight to one of these other cities located in Canada.

Search flights from Islip to Quebec by cabin class

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

Islip and Quebec flights

Browse other Islip and Quebec flight options. Last updated on 20 August 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Islip to Quebec flights

Consider these flights travelling from Islip to Quebec.

Fly with Cheapflights

How does Cheapflights help users find flights from Islip to Quebec?

Why should you use Cheapflights to find cheap flight tickets from Islip to Quebec?

Can Cheapflights find flights from Islip to Quebec with no change fees?

Can Cheapflights notify me if prices for flights from Islip to Quebec become cheaper?

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Book with Flexibility

Travel Smart

Cheapest flights from Islip to Quebec
Explore the most affordable flight options available from Islip to Quebec. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 August 2026.

Best flights from Islip to Quebec
Discover carefully curated flight deals from Islip to Quebec that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 20 August 2026.

Last-minute flights from Islip to Quebec
Discover last-minute flight deals from Islip to Quebec. Data last updated 20 August 2026 and is based on user searches.