Cheap flights from London to Calgary from £275

The cheapest month to fly to Calgary from London is in November. Flight prices, which tend to average around £389, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of November, then book flights to Calgary from London during February instead. Flights to Calgary in February, while not as cheap as those in November, still average around £447.

Our data shows that Sunday is the least expensive day to fly to Calgary. Tickets to fly out on this day can be as low as £650. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from London to Calgary for around £699.

The cheapest time of day to fly to Calgary is in the afternoon when flights can be purchased for as low as £498. Flights in the morning are often more expensive, with an average ticket price of £775.

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

You are more likely to see cheaper flights to Calgary from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Calgary for around £608 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Calgary from London for as low as £595 on momondo.

There are 4 cabin classes available to choose from on London to Calgary 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 2% on your flight if you consider stops on a London to Calgary flight.

As of April 2026, prices for London to Calgary flights are approximately 25% cheaper when compared to flights at the same time last year.

WestJet, British Airways, and KLM are the most popular carriers operating from London to Calgary

Air Canada, WestJet and Lufthansa are the top three most popular airlines that fly to Calgary from London according to our data. Air Canada is the first choice among our users, with 50% of people opting to fly with this airline when travelling to Calgary. Keep in mind that there are 11 different airlines that fly to Calgary on a routine basis, so you have a few additional options to choose from.

Historically, on average around 20% of flights between London and Calgary have experienced a delay on any given week. The average delay length over the past 12 months has been 141 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing in the morning have, in the past, seen delays more frequently in comparison.

Wednesday is statistically the day of the week that experiences the fewest delays on this flight route. Friday 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 18% of their flights experiencing any sort of delay.

Toronto (YYZ) was the most common stop: 18% of momondo users choosing one-stop flights on this route connected there.

Flights via Vancouver (YVR) offer the lowest average return price of £373.

Flights connecting via Amsterdam (AMS) have the shortest average one-way travel time: 12h 00m.

Vancouver (YVR) has the shortest average stopover time for this route: 1h 08m.

The number of flights available between London and Calgary is 12 per day as of April 2026. The most frequent departure time is 10:00, with 92% of daily flights leaving at midday.

The number of flights available between London and Calgary is 84 per week as of April 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.