Flight Indira Gandhi International Airport departs from Delhi Indira Gandhi International Airport at 22:20 and arrives at Kolkata Netaji Subhas Chandra Bose International Airport at 00:45.
The flighttime is about 2h 25m. The distance travelled ("as the bird flies"): 1262 Km. So the average speed is roughly 522 Km.
The best day to arrive at Delhi is Wednesday and it would be best to avoid Tuesday, as prices are on average 69.09% higher than on Wednesday. (Average prices, based on 3013587 datapoints.)
We have a lot more statistics for flights SG 910 and between Delhi and Kolkata.
