Flight Indira Gandhi International Airport departs from Delhi Indira Gandhi International Airport at 11:40 and arrives at Mumbai Chhatrapati Shivaji International Airport at 13:50.
The flighttime is about 2h 10m. The distance travelled ("as the bird flies"): 544 Km. So the average speed is roughly 251 Km.
The best day to arrive at Delhi is Wednesday and it would be best to avoid Sunday, as prices are on average 86.7% higher than on Wednesday. (Average prices, based on 4730259 datapoints.)
We have a lot more statistics for flights UK 945 and between Delhi and Mumbai.