Most flyers found that booking flight tickets 37 days in advance of their planned departure date is, on average, the best time to get cheap flights to Kolkata.
Most of our users find that booking their departure to Kolkata on a Tuesday is the cheapest. Conversely, departing on a Monday seems to be the most expensive.
In general, when looking for the cheapest flight to Kolkata, our data indicates that afternoon flights are the most cost-effective. midday flights tend to be the most expensive.