Cheap flights from the United Kingdom to Montreal from C$ 310

The cheapest month to fly to Montreal from United Kingdom is in September. Flight prices, which tend to average around C$ 731, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of September, then book flights to Montreal from United Kingdom during June instead. Flights to Montreal in June, while not as cheap as those in September, still average around C$ 766.

Our data shows that Sunday is the least expensive day to fly to Montreal. Tickets to fly out on this day can be as low as C$ 839. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from United Kingdom to Montreal for around C$ 976.

Our data shows that the cheapest United Kingdom to Montreal flights are usually those with departure times in the afternoon. Our users have found flights to Montreal in the afternoon for as low as C$ 834. Flights at noon are often more expensive with an average ticket price of C$ 964.

Fly from London Gatwick to Montreal Pierre Elliott Trudeau Intl for the best United Kingdom - Montreal flight prices

You are more likely to see cheaper flights to Montreal from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to Montreal for around C$ 890 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Montreal from United Kingdom for as low as C$ 829 on momondo.

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

KLM, Delta, and Air Transat are the most popular carriers operating from United Kingdom to Montreal

Air Canada, British Airways and Lufthansa are the top three most popular airlines that fly to Montreal from United Kingdom according to our data. Air Canada is the first choice among our users, with 55% of people opting to fly with this airline when travelling to Montreal. Keep in mind that there are 5 different airlines that fly to Montreal on a routine basis, so you have a few additional options to choose from.

Historically, on average around 10% of flights between United Kingdom and Montreal have experienced a delay on any given week. The average delay length over the past 12 months has been 150 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.

Tuesday 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, Air Canada has had the least delays on this route over the last 12 months, with about 6% of their flights experiencing any sort of delay.

As of February 2026, there are 12 flights per day flying from United Kingdom to Montreal. The most common time of day flights depart is 1:00p.m., with 100% of flights taking off in the afternoon.

89 flights are operational weekly from United Kingdom to Montreal as of February 2026. The most popular departure day for this route is Wed, with 18% of flights per week taking off on this day.