Cheap flights from Canada to London from £185

The cheapest month to fly to London from Canada is in May. Flight prices, which tend to average around £404, are often lower during this time because this is during the off-season. The month of February is another great option to travel to London, with average flight prices from Canada averaging around £417.

Our data shows that Wednesday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £511. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Canada to London for around £560.

The cheapest time of day to fly to London is in the evening when flights can be purchased for as low as £539. Flights in the afternoon are often more expensive, with an average ticket price of £546.

Fly from Calgary to London Heathrow for the best Canada - London flight prices

You are more likely to see cheaper flights to London from Canada when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around £509 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Canada for as low as £469 on momondo.

There are 3 cabin classes available to choose from on Canada to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

TAP AIR PORTUGAL, WestJet, and United Airlines are the most popular carriers operating from Canada to London

Air Canada, British Airways and WestJet are the top three most popular airlines that fly to London from Canada according to our data. Air Canada is the first choice among our users, with 68% of people opting to fly with this airline when travelling to London. Keep in mind that there are 13 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

Historically, on average around 21% of flights between Canada and London have experienced a delay on any given week. The average delay length over the past 12 months has been 148 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing at night 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. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, British Airways have had the fewest delays on this route over the last 12 months, with about 19% of their flights experiencing any sort of delay.

The number of flights available between Canada and London is 53 per day as of March 2026. The most frequent departure time is 18:00, with 100% of daily flights leaving in the evening.

375 flights are operational weekly from Canada to London as of March 2026. The most popular departure day for this route is Mon, with 17% of flights per week taking off on this day.