Cheap flights from Canada to London from C$ 239

In general, May is the cheapest month to fly from Canada to London. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 734. If you aren’t able to travel to London 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$ 741.

According to our data, Sunday is the cheapest day to fly to London from Canada. The lowest ticket price found for a Sunday departure recently was C$ 1,129. 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 Monday, the most expensive travel day of the week, you can expect to see flight prices from Canada to London for around C$ 1,230.

Our most recent data shows that the best time of day to fly to London is in the evening. Flights from Canada to London during this time can be as low as C$ 1,116. In the afternoon is when there is more demand to fly to London, so prices are often more expensive at around C$ 1,304 per ticket.

Fly from Montreal Pierre Elliott Trudeau Intl to London Gatwick 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 C$ 923 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Canada for as low as C$ 840 on momondo.

There are 4 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.

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

Air Canada, British Airways and Air Transat 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 55% of people opting to fly with this airline when travelling to London. Keep in mind that there are 19 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

Historically, on average around 20% 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 149 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, Pascan has had the least delays on this route over the last 12 months, with about 14% of their flights experiencing any sort of delay.

57 flights are operational daily from Canada to London 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.

As of February 2026, 405 flights take off from Canada and land in London each week. The most common flight departure day for this route is Thu, with 19% of weekly flights taking off on this day.