Cheap flights from London to Calgary from $578

In general, November is the cheapest month to fly from London to Calgary. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $757. If you don’t want to visit Calgary in November, then you should wait until February to fly from London, when ticket prices are also cheap, with an average price of $840.

The cheapest day to depart from London to Calgary is on a Saturday. Travellers who choose to depart for Calgary on a Saturday will often find tickets for as low as $824. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to Calgary on Thursday is $1,496.

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 $1,144 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 $1,110 on momondo.

There are 3 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.

As of February 2026, prices for London to Calgary flights are approximately 7% more expensive when compared to flights at the same time last year.

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 143 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 17% of their flights experiencing any sort of delay.