Cheap flights from Montreal to Cancún from C$ 257

In general, September is the cheapest month to fly from Montreal to Cancún. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 550. The month of March is another great option to travel to Cancún, with average flight prices from Montreal averaging around C$ 607.

The cheapest day to depart from Montreal to Cancún is on a Tuesday. Travellers who choose to depart for Cancún on a Tuesday will often find tickets for as low as C$ 662. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around C$ 706. These prices are subject to change though, so be sure to set up a Price Alert for flights to Cancún.

Our data shows that the cheapest Montreal to Cancún flights are usually those with departure times in the afternoon. Our users have found flights to Cancún in the afternoon for as low as C$ 605. Flights to Cancún are more costly at noon, with an average ticket price of C$ 737. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to Cancún from Montreal when booking weeks ahead of your departure date. In general, you can expect to find flights to Cancún for around C$ 669 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Cancún from Montreal for as low as C$ 650 on momondo.

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

WestJet, Air Canada, and United Airlines are the most popular carriers operating from Montreal to Cancun

WestJet, Air Transat and Air Canada are the top three most popular airlines that fly to Cancún from Montreal according to our data. WestJet is the first choice among our users, with 39% of people opting to fly with this airline when travelling to Cancún. Keep in mind that there are 11 different airlines that fly to Cancún on a routine basis, so you have a few additional options to choose from.

Historically, on average around 14% of flights between Montreal and Cancún have experienced a delay on any given week. The average delay length over the past 12 months has been 159 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights departing in the early afternoon 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. Saturday 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 10% of their flights experiencing any sort of delay.

Toronto (YYZ) was the most common stop: 65% of momondo users choosing one-stop flights on this route connected there.

Flights via Calgary (YYC) offer the lowest average round-trip price of C$ 439.

Flights connecting via Atlanta (ATL) have the shortest average one-way travel time: 6h 50m.

Philadelphia (PHL) has the shortest average layover time for this route: 1h 26m.

As of April 2026, 4 flights take off from Montreal and land in Cancún each day. The most common flight departure time for this route is 2:00p.m., with 50% of daily flights taking off at noon.

As of April 2026, 31 flights take off from Montreal and land in Cancún each week. The most common flight departure day for this route is Wed, with 26% of weekly flights taking off on this day.