For Economy class flights, the cheapest month to fly this route is January. The most expensive months are August and July.
The most WestJet flights from LON to YYC are scheduled on a Monday (1 on average). You will have fewer WestJet flight options on Monday, which is when the least amount of flights are scheduled (1 on average).
In terms of precipitation, rainfall in Calgary ranges from 9.0 - 94.0 inches per month. June is typically the wettest month, when rainfall can reach 94.0 mm. January is typically the driest time to visit Calgary when rainfall is around 9.0 mm.
If weather is an important factor for your trip to Calgary, 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 -7.0 C).
The best time to book a flight to Calgary with WestJet is 23 days before departure. On average, fares are higher if you book on the same day as departure.
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