Cheap flights from London Heathrow Airport to Montreal from $431

The month of May is another great option to travel to Montreal Pierre Elliott Trudeau Intl Airport, with average flight prices from London Heathrow Airport averaging around $603.

The cheapest day to depart from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport is on a Tuesday. Travelers who choose to depart for Montreal Pierre Elliott Trudeau Intl Airport on a Tuesday will often find tickets for as low as $645. Flights from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport on a Monday will generally be more expensive and average around $740. 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 Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport when you can find flight prices for as low as $648. 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 $764.

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

You are more likely to see cheaper flights to Montreal Pierre Elliott Trudeau Intl Airport from London Heathrow Airport 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 $667 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 Heathrow Airport for as low as $611 on momondo.

There are 3 cabin classes available to choose from on London Heathrow to Montreal Pierre Elliott Trudeau Intl 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 9% 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 158 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.

Wednesday is statistically the day of the week which experiences the fewest number of 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 have had the least number of delays on this route over the last 12 months; with about 6% of their flights experiencing any sort of delay.

The number of flights available between London Heathrow Airport and Montreal Pierre Elliott Trudeau Intl Airport is 12 per day as of March 2026. The most frequent departure time is 1:00PM, with 100% of daily flights leaving in the afternoon.

87 flights are operational weekly from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport as of March 2026. The most popular departure day for this route is Mon, with 15% of flights per week taking off on this day.