Flight Indira Gandhi International Airport departs from Delhi Indira Gandhi International Airport at 05:45 and arrives at Kolkata Netaji Subhas Chandra Bose International Airport at 11:35.The flight has a short stop at Chennai.
The flighttime is about 5h 50m. The distance travelled ("as the bird flies"): 1262 Km. So the average speed is roughly 216 Km.
The best day to arrive at Delhi is Friday and it would be best to avoid Sunday, as prices are on average 87.07% higher than on Friday. (Average prices, based on 2485480 datapoints.)
We have a lot more statistics for flights SG 8128 and between Delhi and Kolkata.