The best month to fly between Delhi and Kolkata is July and the most expensive month to fly is November. (Average prices, based on 996 datapoints.)
The best day to arrive at Delhi is Monday and it would be best to avoid Saturday, as prices are on average 65.05% higher than on Monday. (Average prices, based on 3046843 datapoints.)
The cheapest airline flying from Delhi to Kolkata is Spicejet. They are 24% cheaper than Air India. (Average prices, based on 1016 datapoints.)
The best time to fly is at around 16. (Average prices, based on 1404 datapoints.)