Most travellers find the cheapest return flights to Kolkata when choosing a flight departing in September.
On average, from most locations, when planning your trip to Kolkata, try to book your flight in the region of 42 days in advance for the cheapest prices.
Most of our users find that booking their departure to Kolkata on a Sunday is the cheapest. Conversely, departing on a Monday seems to be the most expensive.
On average you can find the best deals on plane tickets to Kolkata when looking for flights with morning departure times.