Cheap flights from London to Montreal from $419

The month of September is another great option to travel to Montreal Pierre Elliott Trudeau Intl Airport, with average flight prices from London averaging around $317.

The cheapest day to depart from London to Montreal Pierre Elliott Trudeau Intl Airport is on a Wednesday. Travelers who choose to depart for Montreal Pierre Elliott Trudeau Intl Airport on a Wednesday will often find tickets for as low as $706. Flights from London to Montreal Pierre Elliott Trudeau Intl Airport on a Monday will generally be more expensive and average around $766. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

In the morning is the cheapest time of day to fly from London to Montreal Pierre Elliott Trudeau Intl Airport when you can find flight prices for as low as $690. Flying to Montreal Pierre Elliott Trudeau Intl Airport in the morning is an ideal time because this is during off-peak travel hours. Flights at noon are often more expensive with an average ticket price of $777.

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 $682 when searching weeks out. 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 $645 on momondo.

You could potentially save up to 5% on your flight if you consider stops on a London to Montreal Pierre Elliott Trudeau Intl Airport flight.

As of April 2026, prices for London to Montreal Pierre Elliott Trudeau Intl Airport flights are approximately 52% more expensive when compared to flights at the same time last year.

Historically, on average around 10% 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 148 minutes.

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

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Monday has historically seen more delays on average compared to the rest of the week.

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

As of April 2026, 15 flights take off from London and land in Montreal Pierre Elliott Trudeau Intl Airport each day. The most common flight departure time for this route is 2:00PM, with 49% of daily flights taking off in the afternoon.

As of April 2026, 105 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 Tue, with 20% of weekly flights taking off on this day.