Flight Chhatrapati Shivaji International Airport departs from Mumbai Chhatrapati Shivaji International Airport at 23:45 and arrives at Kolkata Netaji Subhas Chandra Bose International Airport at 02:25.
The flighttime is about 2h 40m. The distance travelled ("as the bird flies"): 1733 Km. So the average speed is roughly 650 Km.
The best day to arrive at Mumbai is Sunday and it would be best to avoid Monday, as prices are on average 505.17% higher than on Sunday. (Average prices, based on 633109 datapoints.)
We have a lot more statistics for flights SG 141 and between Mumbai and Kolkata.