Flight Indira Gandhi International Airport departs from Delhi Indira Gandhi International Airport at 08:30 and arrives at Patna Lok Nayak Jayaprakash Airport at 10:20.
The flighttime is about 1h 50m. The distance travelled ("as the bird flies"): 888 Km. So the average speed is roughly 484 Km.
The best day to arrive at Delhi is Tuesday and it would be best to avoid Sunday, as prices are on average 71.51% higher than on Tuesday. (Average prices, based on 494018 datapoints.)
We have a lot more statistics for flights SG 8721 and between Delhi and Patna.