Flight Indira Gandhi International Airport departs from Delhi Indira Gandhi International Airport at 20:30 and arrives at Chennai Chennai International Airport at 23:20.
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 Wednesday and it would be best to avoid Sunday, as prices are on average 150.96% higher than on Wednesday. (Average prices, based on 1088490 datapoints.)
We have a lot more statistics for flights 6E 6341 and between Delhi and Chennai.
