Flight Indira Gandhi International Airport departs from Delhi Indira Gandhi International Airport at 22:00 and arrives at Mumbai Chhatrapati Shivaji International Airport at 00:25.
The flighttime is about 2h 25m. The distance travelled ("as the bird flies"): 544 Km. So the average speed is roughly 225 Km.
The best day to arrive at Delhi is Thursday and it would be best to avoid Saturday, as prices are on average 99.69% higher than on Thursday. (Average prices, based on 6609747 datapoints.)
We have a lot more statistics for flights AI 2999 and between Delhi and Mumbai.
