Flight Indira Gandhi International Airport departs from Delhi Indira Gandhi International Airport at 16:50 and arrives at Patna Lok Nayak Jayaprakash Airport at 18:20.
The flighttime is about 1h 30m. The distance travelled ("as the bird flies"): 888 Km. So the average speed is roughly 592 Km.
The best day to arrive at Delhi is Monday and it would be best to avoid Friday, as prices are on average 83.34% higher than on Monday. (Average prices, based on 334275 datapoints.)
We have a lot more statistics for flights G8 231 and between Delhi and Patna.