Flight Indira Gandhi International Airport departs from Delhi Indira Gandhi International Airport at 05:55 and arrives at Chennai Chennai International Airport at 08:45.
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 Thursday and it would be best to avoid Monday, as prices are on average 118.74% higher than on Thursday. (Average prices, based on 665295 datapoints.)
We have a lot more statistics for flights AI 439 and between Delhi and Chennai.