Cheap flights from London to Toronto from £249

The month of September is, on average, the cheapest month to fly to Toronto from London, with most prices found around £378. If you are unable to visit Toronto during the month of September, then departing from London during the month February is also very affordable. Most momondo users find prices during this month for around £386.

Our data shows that Friday is the least expensive day to fly to Toronto. Tickets to fly out on this day can be as low as £511. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Toronto on Monday is £547.

In the morning is the cheapest time of day to fly from London to Toronto when you can find flight prices for as low as £510. Flying to Toronto in the morning is an ideal time because this is during off-peak travel hours. Flights to Toronto are more costly in the afternoon, with an average ticket price of £564. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from London Gatwick 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 £471 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Toronto from London for as low as £429 on momondo.

WestJet, Air Transat, and SWISS are the most popular carriers operating from London to Toronto

Air Canada, Air Transat and Lufthansa 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 65% of people opting to fly with this airline when travelling to Toronto. Keep in mind that there are 17 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 132 minutes.

Generally, flights departing at night 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. 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: 46% of momondo users choosing one-stop flights on this route connected there.

Flights via Reykjavik (KEF) offer the lowest average return price of £315.

Flights connecting via Amsterdam (AMS) have the shortest average one-way travel time: 10h 10m.

Amsterdam (AMS) has the shortest average stopover time for this route: 1h 04m.

The number of flights available between London and Toronto is 36 per day as of May 2026. The most frequent departure time is 17:00, with 82% of daily flights leaving in the afternoon.

The number of flights available between London and Toronto is 254 per week as of May 2026. The most frequent departure day is Fri, with 17% of weekly flights leaving on this day.