Cheap flights from Montreal to Toronto from C$ 125

The cheapest month to fly to Toronto Island Airport from Montreal is in August. Flight prices, which tend to average around C$ 405, are often lower during this time because this is during the off-season. If you aren’t able to travel to Toronto Island Airport during the month of August, then flying in July is also cheap. Prices for this month can be found on momondo for an average of C$ 405.

On average, the least expensive day to fly to Toronto Island Airport from Montreal is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as C$ 434. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around C$ 481. These prices are subject to change though, so be sure to set up a Price Alert for flights to Toronto Island Airport.

Flying to Toronto Island Airport from Montreal at noon is the least expensive time of day to depart. momondo users have found prices as low as C$ 445 when looking at flights departing at noon. In contrast, the most expensive time of day to depart to Toronto Island Airport is in the evening when prices are around C$ 503.

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

You are more likely to see cheaper flights to Toronto Island Airport from Montreal when booking weeks ahead of your departure date. In general, you can expect to find flights to Toronto Island Airport for around C$ 513 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Toronto Island Airport from Montreal for as low as C$ 331 on momondo.

There are 3 cabin classes available to choose from on Montreal to Toronto Island Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Porter Airlines and Air Transat are the most popular carriers operating from Montreal to Toronto Island

Porter Airlines, Air Canada and Air Transat are the top three most popular airlines that fly to Toronto Island Airport from Montreal according to our data. Porter Airlines is the first choice among our users, with 65% of people opting to fly with this airline when travelling to Toronto Island Airport. Keep in mind that there are 3 different airlines that fly to Toronto Island Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 24% of flights between Montreal and Toronto have experienced a delay on any given week. The average delay length over the past 12 months has been 107 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

Wednesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, Porter Airlines has had the least delays on this route over the last 12 months, with about 23% of their flights experiencing any sort of delay.

The number of flights available between Montreal and Toronto Island Airport is 21 per day as of November 2026. The most frequent departure time is 12:00p.m., with 41% of daily flights leaving in the afternoon.

147 flights are operational weekly from Montreal to Toronto Island Airport as of November 2026. The most popular departure day for this route is Wed, with 21% of flights per week taking off on this day.