Cheap flights from London to Montreal from £240

In general, September is the cheapest month to fly from London to Montreal Pierre Elliott Trudeau Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £446. If you are unable to visit Montreal Pierre Elliott Trudeau Intl Airport during the month of September, then departing from London during the month January is also very affordable. Most momondo users find prices during this month for around £474.

Our data shows that Friday is the least expensive day to fly to Montreal Pierre Elliott Trudeau Intl Airport. Tickets to fly out on this day can be as low as £583. Flights from London to Montreal Pierre Elliott Trudeau Intl Airport on a Tuesday will generally be more expensive and average around £609. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Flying to Montreal Pierre Elliott Trudeau Intl Airport from London in the morning is the least expensive time of day to depart. momondo users have found prices as low as £572 when looking at flights departing in the morning. Flights at midday are often more expensive, with an average ticket price of £626.

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

You are more likely to see cheaper flights to Montreal Pierre Elliott Trudeau Intl Airport from London 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 £551 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Montreal Pierre Elliott Trudeau Intl Airport from London for as low as £526 on momondo.

There are 4 cabin classes available to choose from on London 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.

Historically, on average around 12% of flights between London and Montreal have experienced a delay on any given week. The average delay length over the past 12 months has been 156 minutes.

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

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

According to our data, Air Canada have had the fewest delays on this route over the last 12 months, with about 7% of their flights experiencing any sort of delay.

Paris (CDG) was the most common stop: 45% of momondo users choosing one-stop flights on this route connected there.

Flights via Vienna (VIE) offer the lowest average return price of £495.

Flights connecting via Zurich (ZRH) have the shortest average one-way travel time: 10h 50m.

Zurich (ZRH) has the shortest average stopover time for this route: 0h 55m.

The number of flights available between London and Montreal Pierre Elliott Trudeau Intl Airport is 9 per day as of November 2026. The most frequent departure time is 13:00, with 100% of daily flights leaving in the afternoon.

As of November 2026, 64 flights take off from London and land in Montreal Pierre Elliott Trudeau Intl Airport each week. The most common flight departure day for this route is Mon, with 20% of weekly flights taking off on this day.