Flight Indira Gandhi International Airport departs from Delhi Indira Gandhi International Airport at 20:00 and arrives at Mumbai Chhatrapati Shivaji International Airport at 22:20.
The flighttime is about 2h 20m. The distance travelled ("as the bird flies"): 544 Km. So the average speed is roughly 233 Km.
The best day to arrive at Delhi is Sunday and it would be best to avoid Tuesday, as prices are on average 146.8% higher than on Sunday. (Average prices, based on 4800522 datapoints.)
We have a lot more statistics for flights 6E 6016 and between Delhi and Mumbai.
IDR