Flight Chhatrapati Shivaji International Airport departs from Mumbai Chhatrapati Shivaji International Airport at 01:30 and arrives at Delhi Indira Gandhi International Airport at 03:50.
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 Mumbai is Wednesday and it would be best to avoid Sunday, as prices are on average 79.7% higher than on Wednesday. (Average prices, based on 6645567 datapoints.)
We have a lot more statistics for flights AI 859 and between Mumbai and Delhi.