The best month to arrive at Kolkata is September and the most expensive month to fly is April. (Average prices, based on 559 datapoints.)
The best day to arrive at Kolkata is Sunday and it would be best to avoid Saturday, as prices are on average 29.2% higher than on Sunday. (Average prices, based on 389 datapoints.)
The cheapest airline flying to Kolkata is Vistara. They are 64% cheaper than Thai Airways. (Average prices, based on 580 datapoints.)
At Kolkata the most flights depart around 22:00. (Hourly flights, based on 630 datapoints.)
From Kolkata it is on average the cheapest to fly to Hyderabad and to Delhi. (Average prices, based on 654 datapoints.)