Flight Indira Gandhi International Airport departs from Delhi Indira Gandhi International Airport at 22:45 and arrives at Chennai Chennai International Airport at 01:35.
The flighttime is about 2h 50m. The distance travelled ("as the bird flies"): 479 Km. So the average speed is roughly 169 Km.
The best day to arrive at Delhi is Monday and it would be best to avoid Thursday, as prices are on average 62.59% higher than on Monday. (Average prices, based on 660775 datapoints.)
We have a lot more statistics for flights 6E 6061 and between Delhi and Chennai.