Flight Indira Gandhi International Airport departs from Delhi Indira Gandhi International Airport at 02:00 and arrives at Mumbai Chhatrapati Shivaji International Airport at 04:20.
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 Thursday and it would be best to avoid Saturday, as prices are on average 304.93% higher than on Thursday. (Average prices, based on 6004263 datapoints.)
We have a lot more statistics for flights 6E 673 and between Delhi and Mumbai.
