Flight Indira Gandhi International Airport departs from Delhi Indira Gandhi International Airport at 23:00 and arrives at Mumbai Chhatrapati Shivaji International Airport at 01:25.
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 Monday and it would be best to avoid Friday, as prices are on average 46.09% higher than on Monday. (Average prices, based on 6610443 datapoints.)
We have a lot more statistics for flights AI 2439 and between Delhi and Mumbai.
