Flight Indira Gandhi International Airport departs from Delhi Indira Gandhi International Airport at 15:20 and arrives at Trivandrum Trivandrum International Airport at 18:40.
The flighttime is about 3h 20m. The distance travelled ("as the bird flies"): 499 Km. So the average speed is roughly 150 Km.
The best day to arrive at Delhi is Friday and it would be best to avoid Sunday, as prices are on average 228.64% higher than on Friday. (Average prices, based on 135825 datapoints.)
We have a lot more statistics for flights AI 801 and between Delhi and Trivandrum.