Booking with Air Canada 83 days in advance of your planned departure date is, on average, the best time to get cheap flights from Calgary to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, the most affordable month to book a Air Canada flight from Calgary to London Heathrow Airport in November, with an average price of C$ 658. Conversely, traveling with Air Canada from Calgary to London Heathrow Airport in August will be the most expensive, with an average cost of C$ 1,111. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.
In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 mm per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.
If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).
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