Flight Indira Gandhi International Airport departs from Delhi Indira Gandhi International Airport at 17:15 and arrives at Ranchi Birsa Munda Airport at 18:55.
The flighttime is about 1h 40m. The distance travelled ("as the bird flies"): 916 Km. So the average speed is roughly 550 Km.
The best day to arrive at Delhi is Wednesday and it would be best to avoid Monday, as prices are on average 164.7% higher than on Wednesday. (Average prices, based on 115771 datapoints.)
We have a lot more statistics for flights G8 201 and between Delhi and Ranchi.