Booking 37 days in advance of your planned departure date is, on average, the best time to get the best price for Economy class flights from London Heathrow Airport to Kolkata.
For Economy class flights, the cheapest month to fly this route is May. The most expensive months are August and December.
In terms of precipitation, rainfall in Kolkata ranges from 7.0 - 356.0 inches per month. August is typically the wettest month, when rainfall can reach 356.0 mm. December is typically the driest time to visit Kolkata when rainfall is around 7.0 mm.
If weather is an important factor for your trip to Kolkata, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 31.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 20.0 C).
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