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Cheap flights from Islip, NY to Montreal Pierre Elliott Trudeau Intl Airport from C$ 916

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 23/2. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — YUL
25 Feb — 4 Mar1
1 adult

Cheap flight deals from Islip to Pierre Elliott Trudeau Intl

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Pierre Elliott Trudeau Intl (YUL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 20 February 2025.

Popular in

December

Cheapest in

September

Average price

C$ 457
Highest demand for flights based on searches. 4% potential increase in price (C$ 31 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease (C$ 12 potential savings vs. average RT price).
Average for round-trip flights in February 2025

Find flight deals from Islip to Pierre Elliott Trudeau Intl

Cheapest flights from Islip to Pierre Elliott Trudeau Intl
Explore the most affordable flight options available from Islip to Pierre Elliott Trudeau Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 February 2025.

Sun 23/28:42 a.m.ISP - YUL
1 stop29h 28mMultiple Airlines
Tue 25/26:15 a.m.YUL - ISP
1 stop26h 26mMultiple Airlines
Deal found 19/2C$ 916

Best time to book a flight from Islip to Pierre Elliott Trudeau Intl

Have a flexible travel schedule? Discover the best time to fly to Pierre Elliott Trudeau Intl from Islip 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.

Travel insights for flights from Islip to Pierre Elliott Trudeau Intl

Get recent, data-driven insights about flights from Islip to Pierre Elliott Trudeau Intl including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Islip, New York to Montreal Pierre Elliott Trudeau Intl Airport?

Currently, October is the cheapest month in which you can book a flight from Islip, New York to Montreal Pierre Elliott Trudeau Intl Airport (average of C$ 241). Flying from Islip, New York to Montreal Pierre Elliott Trudeau Intl Airport in March is currently the most expensive (average of C$ 345). 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.

Rainfall in Pierre Elliott Trudeau Intl by month

Plan your trip to Pierre Elliott Trudeau Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Montreal Pierre Elliott Trudeau Intl Airport 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 Montreal Pierre Elliott Trudeau Intl Airport when rainfall is around 64.0 mm.

Temperature in Pierre Elliott Trudeau Intl by month

Plan your trip to Pierre Elliott Trudeau Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Montreal Pierre Elliott Trudeau Intl Airport, 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).

Related info for your journey

Find useful and relevant information for your journey from Islip to Pierre Elliott Trudeau Intl. 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 from for flights from Islip to Montreal Pierre Elliott Trudeau Intl?

    Located just 11.6 km from the city centre, Islip Long Island is the airport most travellers will use when flying to Montreal Pierre Elliott Trudeau Intl from Islip. Booking flights from Long Island (ISP) to Montreal Pierre Elliott Trudeau Intl should be relatively easy as there are 0 daily outbound flights to Montreal Pierre Elliott Trudeau Intl from 0 different airlines.

  • Can I find deals for flights from Islip to Pierre Elliott Trudeau Intl that include hotel bookings?

    Yes. In addition to deals on Islip to Pierre Elliott Trudeau Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Islip to Pierre Elliott Trudeau Intl?

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

  • Can I find deals for business class flights from Islip to Pierre Elliott Trudeau Intl?

    Yes. Cheapflights offers flight deals from Islip to Pierre Elliott Trudeau Intl 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 Islip, New York to Montreal Pierre Elliott Trudeau Intl Airport?

    Currently, October is the cheapest month in which you can book a flight from Islip, New York to Montreal Pierre Elliott Trudeau Intl Airport (average of C$ 241). Flying from Islip, New York to Montreal Pierre Elliott Trudeau Intl Airport in March is currently the most expensive (average of C$ 345). 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.

See more FAQs

Travelling to a place near Islip?

Book flights to Islip if you plan to visit one of these locations
Laval
Dorval
Brossard
Longueuil
Cornwall
Montebello
Saint-Jean-sur-Richelieu
Sherbrooke
Saint-Sauveur
Bromont
Drummondville
Trois-Rivières

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Can Cheapflights notify me if prices for flights from Islip to Pierre Elliott Trudeau Intl become cheaper?

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