Cheap flights from London Heathrow Airport to Toronto from £255

In general, September is the cheapest month to fly from London Heathrow Airport to Toronto Pearson Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £403. If you are unable to visit Toronto Pearson Intl Airport during the month of September, then departing from London Heathrow Airport during the month October is also very affordable. Most momondo users find prices during this month for around £405.

The cheapest day to depart on your flight to Toronto Pearson Intl Airport is on a Friday when prices can be found for as low as £529. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Toronto Pearson Intl Airport is Monday, with ticket prices averaging around £565.

According to our data, the cheapest time of day to fly to Toronto Pearson Intl Airport is at midday. momondo users have found flights departing from London Heathrow Airport to Toronto Pearson Intl Airport at midday for as low as £528. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £580 on average. Flights to Toronto Pearson Intl Airport from London Heathrow Airport in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

You are more likely to see cheaper flights to Toronto Pearson Intl Airport from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Toronto Pearson Intl Airport for around £481 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Toronto Pearson Intl Airport from London Heathrow Airport for as low as £456 on momondo.

There are 4 cabin classes available to choose from on London Heathrow Airport to Toronto Pearson Intl Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Icelandair, TAP AIR PORTUGAL, and KLM are the most popular carriers operating from London Heathrow to Toronto Pearson Intl

Air Canada, Virgin Atlantic and Lufthansa are the top three most popular airlines that fly to Toronto Pearson Intl Airport from London Heathrow Airport according to our data. Air Canada is the first choice among our users, with 70% of people opting to fly with this airline when travelling to Toronto Pearson Intl Airport. Keep in mind that there are 16 different airlines that fly to Toronto Pearson Intl Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 12% 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 135 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.

Monday 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 9% of their flights experiencing any sort of delay.

Reykjavik (KEF) was the most common stop: 39% of momondo users choosing one-stop flights on this route connected there.

Flights via Frankfurt am Main (FRA) offer the lowest average return price of £368.

Flights connecting via Halifax (YHZ) have the shortest average one-way travel time: 10h 37m.

Newark (EWR) has the shortest average stopover time for this route: 1h 23m.

As of June 2026, there are 33 flights per day flying from London Heathrow Airport to Toronto Pearson Intl Airport. The most common time of day flights depart is 17:00, with 81% of flights taking off in the afternoon.

236 flights are operational weekly from London Heathrow Airport to Toronto Pearson Intl Airport as of June 2026. The most popular departure day for this route is Thu, with 17% of flights per week taking off on this day.