Flight Indira Gandhi International Airport departs from Delhi Indira Gandhi International Airport at 18:40 and arrives at Dehradun Dehradun Airport at 19:30.
The flighttime is about 0h 50m. The distance travelled ("as the bird flies"): 125 Km. So the average speed is roughly 150 Km.
The best day to arrive at Delhi is Monday and it would be best to avoid Sunday, as prices are on average 178.98% higher than on Monday. (Average prices, based on 87558 datapoints.)
We have a lot more statistics for flights 6E 6582 and between Delhi and Dehradun.