Flight Indira Gandhi International Airport departs from Delhi Indira Gandhi International Airport at 15:30 and arrives at Kolkata Netaji Subhas Chandra Bose International Airport at 17:40.
The flighttime is about 2h 10m. The distance travelled ("as the bird flies"): 1262 Km. So the average speed is roughly 582 Km.
The best day to arrive at Delhi is Monday and it would be best to avoid Saturday, as prices are on average 240.79% higher than on Monday. (Average prices, based on 2527560 datapoints.)
We have a lot more statistics for flights 6E 755 and between Delhi and Kolkata.
USD