Cheap flights from London to Toronto from C$ 423

The month of February is, on average, the cheapest month to fly to Toronto from London, with most prices found around C$ 738. The month of January is another great option to travel to Toronto, with average flight prices from London averaging around C$ 771.

According to our data, Saturday is the cheapest day to fly to Toronto from London. The lowest ticket price found for a Saturday departure recently was C$ 983. 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 to Toronto on a Thursday will generally be more expensive and average around C$ 1,078. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Flying to Toronto from London at noon is the least expensive time of day to depart. momondo users have found prices as low as C$ 950 when looking at flights departing at noon. Try not to purchase tickets in the afternoon because they tend to be around C$ 1,034. 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 - Toronto flight prices

You are more likely to see cheaper flights to Toronto from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Toronto for around C$ 949 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Toronto from London for as low as C$ 923 on momondo.

There are 3 cabin classes available to choose from on London to Toronto 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 4% on your flight if you consider stops on a London to Toronto flight.

As of September 2026, prices for London to Toronto flights are approximately 18% cheaper when compared to flights at the same time last year.

Air Transat, TAP AIR PORTUGAL, and SWISS are the most popular carriers operating from London to Toronto

Air Canada, Lufthansa and Air Transat are the top three most popular airlines that fly to Toronto from London according to our data. Air Canada is the first choice among our users, with 54% of people opting to fly with this airline when travelling to Toronto. Keep in mind that there are 8 different airlines that fly to Toronto on a routine basis, so you have a few additional options to choose from.

Historically, on average around 15% 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 152 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. Saturday 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 10% of their flights experiencing any sort of delay.

Reykjavik (KEF) was the most common stop: 41% of momondo users choosing one-stop flights on this route connected there.

Flights via Montreal (YUL) offer the lowest average round-trip price of C$ 630.

Flights connecting via Montreal (YUL) have the shortest average one-way travel time: 10h 50m.

Montreal (YUL) has the shortest average layover time for this route: 1h 48m.

36 flights are operational daily from London to Toronto as of September 2026. The most popular departure time for this route is 5:00p.m., with 82% of flights per day taking off in the afternoon.

The number of flights available between London and Toronto is 256 per week as of September 2026. The most frequent departure day is Thu, with 17% of weekly flights leaving on this day.