Cheap flights from London Heathrow Airport to Calgary from $299

The month of February is, on average, the cheapest month to fly to Calgary from London Heathrow Airport, with most prices found around $476. If you aren’t able to travel during the month of February, then book flights to Calgary from London Heathrow Airport during November instead. Flights to Calgary in November, while not as cheap as those in February, still average around $495.

The cheapest day to depart on your flight to Calgary is on a Sunday when prices can be found for as low as $889. This is often the case because there is less demand to fly during this day of the week. Flights from London Heathrow Airport to Calgary on a Saturday will generally be more expensive and average around $1,170. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

The cheapest time of day to fly to Calgary is in the afternoon when flights can be purchased for as low as $830. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,135 on average. Flights to Calgary from London Heathrow Airport in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

You are more likely to see cheaper flights to Calgary from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Calgary for around $813 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Calgary from London Heathrow Airport for as low as $797 on momondo.

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

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

WestJet, Air Canada and Lufthansa are the top three most popular airlines that fly to Calgary from London Heathrow Airport according to our data. WestJet is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Calgary. Keep in mind that there are 3 different airlines that fly to Calgary on a routine basis, so you have a few additional options to choose from.

Historically, on average around 19% 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 in the morning have, in the past, seen delays more frequently in comparison.

Wednesday is statistically the day of the week which experiences the fewest number of 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 least number of delays on this route over the last 12 months; with about 17% of their flights experiencing any sort of delay.

The number of flights available between London Heathrow Airport and Calgary is 12 per day as of March 2026. The most frequent departure time is 3:00PM, with 100% of daily flights leaving in the afternoon.

84 flights are operational weekly from London Heathrow Airport to Calgary as of March 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.