Cheap flights from Toronto to London from C$ 370

The month of May is, on average, the cheapest month to fly to London Heathrow Airport from Toronto, with most prices found around C$ 779. If you aren’t able to travel to London Heathrow Airport during the month of May, then flying in February is also cheap. Prices for this month can be found on momondo for an average of C$ 787.

According to our data, Sunday is the cheapest day to fly to London Heathrow Airport from Toronto. The lowest ticket price found for a Sunday departure recently was C$ 1,215. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Toronto to London Heathrow Airport for around C$ 1,336.

Our data shows that the cheapest Toronto to London Heathrow Airport flights are usually those with departure times in the evening. Our users have found flights to London Heathrow Airport in the evening for as low as C$ 1,276. In the afternoon is when there is more demand to fly to London Heathrow Airport, so prices are often more expensive at around C$ 1,303 per ticket.

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

You are more likely to see cheaper flights to London Heathrow Airport from Toronto when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around C$ 919 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Toronto for as low as C$ 837 on momondo.

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

As of February 2026, prices for Toronto to London Heathrow Airport flights are approximately 45% more expensive when compared to flights at the same time last year.

WestJet, TAP AIR PORTUGAL, and Air Canada are the most popular carriers operating from Toronto to London Heathrow

Air Canada, British Airways and Lufthansa are the top three most popular airlines that fly to London Heathrow Airport from Toronto according to our data. Air Canada is the first choice among our users, with 59% of people opting to fly with this airline when travelling to London Heathrow Airport. Keep in mind that there are 18 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 165 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. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, Virgin Atlantic has had the least delays on this route over the last 12 months, with about 14% of their flights experiencing any sort of delay.

Reykjavik (KEF) was the most common stop: 36% of momondo users choosing one-stop flights on this route connected there.

Flights via Calgary (YYC) offer the lowest average round-trip price of C$ 217.

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

Zurich (ZRH) has the shortest average layover time for this route: 0h 58m.

34 flights are operational daily from Toronto to London Heathrow Airport as of February 2026. The most popular departure time for this route is 6:00p.m., with 100% of flights per day taking off in the evening.

The number of flights available between Toronto and London Heathrow Airport is 244 per week as of February 2026. The most frequent departure day is Fri, with 20% of weekly flights leaving on this day.