Flight Chhatrapati Shivaji International Airport departs from Mumbai Chhatrapati Shivaji International Airport at 13:15 and arrives at Delhi Indira Gandhi International Airport at 15:25.
The flighttime is about 2h 10m. The distance travelled ("as the bird flies"): 544 Km. So the average speed is roughly 251 Km.
The best day to arrive at Mumbai is Monday and it would be best to avoid Saturday, as prices are on average 19.83% higher than on Monday. (Average prices, based on 6778090 datapoints.)
We have a lot more statistics for flights 6E 615 and between Mumbai and Delhi.