Cheap flights from Ontario to Montreal from C$ 109

The month of September is, on average, the cheapest month to fly to Montreal Pierre Elliott Trudeau Intl Airport from Region of Ontario, with most prices found around C$ 337. The month of February is another great option to travel to Montreal Pierre Elliott Trudeau Intl Airport, with average flight prices from Region of Ontario averaging around C$ 372.

The cheapest day to depart on your flight to Montreal Pierre Elliott Trudeau Intl Airport is on a Friday when prices can be found for as low as C$ 955. This is often the case because there is less demand to fly during this day of the week. On the other hand, Monday is the most expensive day to depart from Region of Ontario because it is more convenient for both business and leisure travellers. As a result, prices tend to be around C$ 1,282.

In the evening is the cheapest time of day to fly from Region of Ontario to Montreal Pierre Elliott Trudeau Intl Airport when you can find flight prices for as low as C$ 905. Flying to Montreal Pierre Elliott Trudeau Intl Airport in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around C$ 1,328. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Toronto Pearson Intl to Montreal Pierre Elliott Trudeau Intl for the best Ontario - Montreal Pierre Elliott Trudeau Intl flight prices

You are more likely to see cheaper flights to Montreal Pierre Elliott Trudeau Intl Airport from Region of Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Montreal Pierre Elliott Trudeau Intl Airport for around C$ 393 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Montreal Pierre Elliott Trudeau Intl Airport from Region of Ontario for as low as C$ 250 on momondo.

There are 3 cabin classes available to choose from on Region of Ontario to Montreal Pierre Elliott Trudeau Intl Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Porter Airlines, WestJet, and Air Canada are the most popular carriers operating from Ontario to Montreal Pierre Elliott Trudeau Intl

Porter Airlines, WestJet and Air Canada are the top three most popular airlines that fly to Montreal Pierre Elliott Trudeau Intl Airport from Region of Ontario according to our data. Porter Airlines is the first choice among our users, with 34% of people opting to fly with this airline when travelling to Montreal Pierre Elliott Trudeau Intl Airport. Keep in mind that there are 4 different airlines that fly to Montreal Pierre Elliott Trudeau Intl Airport on a routine basis, so you have a few additional options to choose from.

The number of flights available between Region of Ontario and Montreal Pierre Elliott Trudeau Intl Airport is 98 per day as of September 2026. The most frequent departure time is 3:00p.m., with 44% of daily flights leaving in the afternoon.

As of September 2026, 691 flights take off from Region of Ontario and land in Montreal Pierre Elliott Trudeau Intl Airport each week. The most common flight departure day for this route is Sun, with 19% of weekly flights taking off on this day.