Flight Chhatrapati Shivaji International Airport departs from Mumbai Chhatrapati Shivaji International Airport at 10:00 and arrives at Kolkata Netaji Subhas Chandra Bose International Airport at 12:55.
The flighttime is about 2h 55m. The distance travelled ("as the bird flies"): 1733 Km. So the average speed is roughly 594 Km.
The best day to arrive at Mumbai is Tuesday and it would be best to avoid Thursday, as prices are on average 121.62% higher than on Tuesday. (Average prices, based on 633008 datapoints.)
We have a lot more statistics for flights 6E 248 and between Mumbai and Kolkata.