Cheap flights from Calgary to the United Kingdom from £140

The cheapest month to fly to United Kingdom from Calgary is in January. Flight prices, which tend to average around £409, are often lower during this time because this is during the off-season. If you are unable to visit United Kingdom during the month of January, then departing from Calgary during the month February is also very affordable. Most momondo users find prices during this month for around £434.

The cheapest day to depart from Calgary to United Kingdom is on a Wednesday. Travellers who choose to depart for United Kingdom on a Wednesday will often find tickets for as low as £612. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Calgary to United Kingdom for around £671.

The cheapest time of day to fly to United Kingdom is in the afternoon when flights can be purchased for as low as £624. Try not to purchase tickets in the evening because they tend to be around £637. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to United Kingdom from Calgary when booking weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around £632 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from Calgary for as low as £580 on momondo.

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

WestJet and British Airways are the most popular carriers operating from Calgary to United Kingdom

WestJet, Air Canada and KLM are the top three most popular airlines that fly to United Kingdom from Calgary according to our data. WestJet is the first choice among our users, with 51% of people opting to fly with this airline when travelling to United Kingdom. Keep in mind that there are 3 different airlines that fly to United Kingdom on a routine basis, so you have a few additional options to choose from.

Historically, on average around 17% of flights between Calgary and United Kingdom have experienced a delay on any given week. The average delay length over the past 12 months has been 137 minutes.

Generally, flights departing in the evening 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. Saturday 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 14% of their flights experiencing any sort of delay.

As of November 2026, there are 10 flights per day flying from Calgary to United Kingdom. The most common time of day flights depart is 18:00, with 100% of flights taking off in the evening.

As of November 2026, 73 flights take off from Calgary and land in United Kingdom each week. The most common flight departure day for this route is Mon, with 16% of weekly flights taking off on this day.