Flight Indira Gandhi International Airport departs from Delhi Indira Gandhi International Airport at 09:30 and arrives at Chennai Chennai International Airport at 12:30.
The flighttime is about 3h 00m. The distance travelled ("as the bird flies"): 479 Km. So the average speed is roughly 160 Km.
The best day to arrive at Delhi is Tuesday and it would be best to avoid Saturday, as prices are on average 210.61% higher than on Tuesday. (Average prices, based on 657922 datapoints.)
We have a lot more statistics for flights 6E 5044 and between Delhi and Chennai.