Flight Chhatrapati Shivaji International Airport departs from Mumbai Chhatrapati Shivaji International Airport at 19:40 and arrives at Delhi Indira Gandhi International Airport at 23:30.The flight has a short stop at Ahmedabad.
The flighttime is about 3h 50m. The distance travelled ("as the bird flies"): 544 Km. So the average speed is roughly 142 Km.
The best day to arrive at Mumbai is Thursday and it would be best to avoid Sunday, as prices are on average 135.62% higher than on Thursday. (Average prices, based on 6781965 datapoints.)
We have a lot more statistics for flights 6E 639 and between Mumbai and Delhi.
THB