Cheap flights from Calgary to the United Kingdom from C$ 345

If you aren’t able to travel during the month of January, then book flights to United Kingdom from Calgary during November instead. Flights to United Kingdom in November, while not as cheap as those in January, still average around C$ 753.

According to our data, Sunday is the cheapest day to fly to United Kingdom from Calgary. The lowest ticket price found for a Sunday departure recently was C$ 1,165. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Calgary to United Kingdom on a Friday will generally be more expensive and average around C$ 1,264. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

In the evening is the cheapest time of day to fly from Calgary to United Kingdom when you can find flight prices for as low as C$ 1,159. Flying to United Kingdom in the evening is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to United Kingdom is in the afternoon when prices are around C$ 1,654.

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 C$ 1,092 when searching weeks out. 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 C$ 1,018 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, Air Canada, and United Airlines are the most popular carriers operating from Calgary to United Kingdom

WestJet, Air Canada and Lufthansa 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 52% of people opting to fly with this airline when travelling to United Kingdom. Keep in mind that there are 9 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 130 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. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, Air Canada has had the least delays on this route over the last 12 months, with about 14% of their flights experiencing any sort of delay.

As of April 2026, there are 12 flights per day flying from Calgary to United Kingdom. The most common time of day flights depart is 7:00p.m., with 100% of flights taking off in the evening.

As of April 2026, there are 86 flights per week flying from Calgary to United Kingdom. The most common day of the week flights depart is Tue, with 15% of flights taking off on this day.