Cheap flights from London to Montreal from £259

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 £442. If you are unable to visit Montreal Pierre Elliott Trudeau Intl Airport during the month of September, then departing from London during the month November is also very affordable. Most momondo users find prices during this month for around £465.

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 £571. Flights from London to Montreal Pierre Elliott Trudeau Intl Airport on a Saturday will generally be more expensive and average around £592. 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 afternoon is the least expensive time of day to depart. momondo users have found prices as low as £559 when looking at flights departing in the afternoon. Flights at midday are often more expensive, with an average ticket price of £602.

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 £528 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 £497 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.

You could potentially save up to 13% on your flight if you consider stops on a London to Montreal Pierre Elliott Trudeau Intl Airport flight.

As of August 2026, prices for London to Montreal Pierre Elliott Trudeau Intl Airport flights are approximately 14% cheaper when compared to flights at the same time last year.

Air Transat, Delta, and Virgin Atlantic are the most popular carriers operating from London to Montreal Pierre Elliott Trudeau Intl

Air Canada, Lufthansa and Air Transat are the top three most popular airlines that fly to Montreal Pierre Elliott Trudeau Intl Airport from London according to our data. Air Canada is the first choice among our users, with 66% of people opting to fly with this airline when travelling to Montreal Pierre Elliott Trudeau Intl Airport. Keep in mind that there are 7 different airlines that fly to Montreal Pierre Elliott Trudeau Intl Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 11% 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 155 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.

Saturday 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 6% of their flights experiencing any sort of delay.

Paris (CDG) was the most common stop: 63% of momondo users choosing one-stop flights on this route connected there.

Flights via Toronto (YYZ) offer the lowest average return price of £363.

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 10 per day as of August 2026. The most frequent departure time is 14:00, with 41% of daily flights leaving in the afternoon.

As of August 2026, 71 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 Fri, with 27% of weekly flights taking off on this day.