Cheap flights from London Heathrow Airport to Toronto from C$ 478

The month of February is, on average, the cheapest month to fly to Toronto from London Heathrow Airport, with most prices found around C$ 700. The month of September is another great option to travel to Toronto, with average flight prices from London Heathrow Airport averaging around C$ 711.

According to our data, Friday is the cheapest day to fly to Toronto from London Heathrow Airport. The lowest ticket price found for a Friday departure recently was C$ 855. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from London Heathrow Airport to Toronto on a Monday will generally be more expensive and average around C$ 946. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Flying to Toronto from London Heathrow Airport in the morning is the least expensive time of day to depart. momondo users have found prices as low as C$ 873 when looking at flights departing in the morning. Try not to purchase tickets at noon because they tend to be around C$ 955. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from London Heathrow to Toronto Pearson Intl for the best London Heathrow - Toronto flight prices

You are more likely to see cheaper flights to Toronto from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Toronto for around C$ 853 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Toronto from London Heathrow Airport for as low as C$ 776 on momondo.

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

No. A direct flight is the cheapest option for a flight between London Heathrow Airport to Toronto.

As of March 2026, prices for London Heathrow Airport to Toronto flights are approximately 16% more expensive when compared to flights at the same time last year.

British Airways, Delta, and KLM are the most popular carriers operating from London Heathrow to Toronto

Air Canada, Lufthansa and British Airways are the top three most popular airlines that fly to Toronto from London Heathrow Airport 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 Toronto. Keep in mind that there are 11 different airlines that fly to Toronto on a routine basis, so you have a few additional options to choose from.

Historically, on average around 11% of flights between London and Toronto have experienced a delay on any given week. The average delay length over the past 12 months has been 140 minutes.

Generally, flights departing in the evening tend to experience fewer delays. Flights departing in the early afternoon 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. Wednesday 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 7% of their flights experiencing any sort of delay.

Lisbon (LIS) was the most common stop: 33% of momondo users choosing one-stop flights on this route connected there.

Flights via Lisbon (LIS) offer the lowest average round-trip price of C$ 895.

Flights connecting via Montreal (YUL) have the shortest average one-way travel time: 10h 05m.

Montreal (YUL) has the shortest average layover time for this route: 1h 17m.

The number of flights available between London Heathrow Airport and Toronto is 24 per day as of March 2026. The most frequent departure time is 1:00p.m., with 49% of daily flights leaving in the afternoon.

The number of flights available between London Heathrow Airport and Toronto is 169 per week as of March 2026. The most frequent departure day is Mon, with 21% of weekly flights leaving on this day.