Flight Indira Gandhi International Airport departs from Delhi Indira Gandhi International Airport at 13:35 and arrives at Patna Lok Nayak Jayaprakash Airport at 15:20.
The flighttime is about 1h 45m. The distance travelled ("as the bird flies"): 888 Km. So the average speed is roughly 507 Km.
The best day to arrive at Delhi is Tuesday and it would be best to avoid Friday, as prices are on average 155.07% higher than on Tuesday. (Average prices, based on 513527 datapoints.)
We have a lot more statistics for flights AI 407 and between Delhi and Patna.