Cheap flights from Toronto Pearson Intl Airport to London from £221

In general, May is the cheapest month to fly from Toronto Pearson Intl Airport to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £436. The month of February is another great option to travel to London Heathrow Airport, with average flight prices from Toronto Pearson Intl Airport averaging around £444.

On average, the least expensive day to fly to London Heathrow Airport from Toronto Pearson Intl Airport is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as £542. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Saturday is £591.

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the afternoon. momondo users have found flights departing from Toronto Pearson Intl Airport to London Heathrow Airport in the afternoon for as low as £552. 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 evening when prices are £570 on average. Flights to London Heathrow Airport from Toronto Pearson Intl Airport in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

You are more likely to see cheaper flights to London Heathrow Airport from Toronto Pearson Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £512 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Toronto Pearson Intl Airport for as low as £472 on momondo.

There are 3 cabin classes available to choose from on Toronto Pearson Intl to London Heathrow 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 27% on your flight if you consider stops on a Toronto Pearson Intl Airport to London Heathrow Airport flight.

As of March 2026, prices for Toronto Pearson Intl Airport to London Heathrow Airport flights are approximately 34% more expensive when compared to flights at the same time last year.

United Airlines is the most popular carrier operating from Toronto Pearson Intl to London Heathrow

Air Canada, British Airways and Virgin Atlantic are the top three most popular airlines that fly to London Heathrow Airport from Toronto Pearson Intl Airport according to our data. Air Canada is the first choice among our users, with 73% of people opting to fly with this airline when travelling to London Heathrow Airport. Keep in mind that there are 10 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 22% of flights between Toronto and London have experienced a delay on any given week. The average delay length over the past 12 months has been 160 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.

Monday 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, Virgin Atlantic have had the fewest delays on this route over the last 12 months, with about 17% of their flights experiencing any sort of delay.

Montreal (YUL) was the most common stop: 57% of momondo users choosing one-stop flights on this route connected there.

Flights via Reykjavik (KEF) offer the lowest average return price of £379.

Flights connecting via Dublin (DUB) have the shortest average one-way travel time: 9h 35m.

Reykjavik (KEF) has the shortest average stopover time for this route: 1h 20m.

The number of flights available between Toronto Pearson Intl Airport and London Heathrow Airport is 31 per day as of March 2026. The most frequent departure time is 18:00, with 100% of daily flights leaving in the evening.

As of March 2026, 217 flights take off from Toronto Pearson Intl Airport and land in London Heathrow Airport each week. The most common flight departure day for this route is Wed, with 16% of weekly flights taking off on this day.