Cheap flights from Montreal to South America from C$ 340

The month of March is another great option to travel to South America, with average flight prices from Montreal averaging around C$ 847.

On average, the least expensive day to fly to South America from Montreal is on a Saturday. momondo users have found tickets for Saturday departures for as low as C$ 915. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Montreal to South America for around C$ 1,115.

The cheapest time of day to fly to South America is in the afternoon when flights can be purchased for as low as C$ 992. Flights to South America are more costly in the evening, with an average ticket price of C$ 1,044. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Montreal Pierre Elliott Trudeau Intl to Rio de Janeiro–Galeão Intl for the best Montreal - South America flight prices

You are more likely to see cheaper flights to South America from Montreal when booking weeks ahead of your departure date. In general, you can expect to find flights to South America for around C$ 922 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to South America from Montreal for as low as C$ 777 on momondo.

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

Copa Airlines, Air Transat, and American Airlines are the most popular carriers operating from Montreal to South America

Avianca, Air Canada and Air Transat are the top three most popular airlines that fly to South America from Montreal according to our data. Avianca is the first choice among our users, with 35% of people opting to fly with this airline when travelling to South America. Keep in mind that there are 11 different airlines that fly to South America on a routine basis, so you have a few additional options to choose from.

Historically, on average around 23% of flights between Montreal and South America have experienced a delay on any given week. The average delay length over the past 12 months has been 125 minutes.

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

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

According to our data, Air Transat has had the least delays on this route over the last 12 months, with about 19% of their flights experiencing any sort of delay.

As of November 2026, there are 2 flights per day flying from Montreal to South America. The most common time of day flights depart is 11:00p.m., with 92% of flights taking off in the evening.

14 flights are operational weekly from Montreal to South America as of November 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.