Flight Chhatrapati Shivaji International Airport departs from Mumbai Chhatrapati Shivaji International Airport at 06:00 and arrives at Delhi Indira Gandhi International Airport at 08:05.
The flighttime is about 2h 05m. The distance travelled ("as the bird flies"): 544 Km. So the average speed is roughly 261 Km.
The best month to arrive at Mumbai is September and the most expensive month to fly is May. (Average prices, based on 1934 datapoints.)
We have a lot more statistics for flights 6E 716 and between Mumbai and Delhi.