Flight Indira Gandhi International Airport departs from Delhi Indira Gandhi International Airport at 09:55 and arrives at Chennai Chennai International Airport at 12:45.
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 Friday and it would be best to avoid Sunday, as prices are on average 176.34% higher than on Friday. (Average prices, based on 684294 datapoints.)
We have a lot more statistics for flights AI 429 and between Delhi and Chennai.