Flight Indira Gandhi International Airport departs from Delhi Indira Gandhi International Airport at 16:45 and arrives at Patna Lok Nayak Jayaprakash Airport at 18:35.
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 Monday and it would be best to avoid Wednesday, as prices are on average 63.25% higher than on Monday. (Average prices, based on 343410 datapoints.)
This graph shows the distribution of prices found in the past years for this flight. (Average prices, based on 178 datapoints.)
We have a lot more statistics for flights AI 415 and between Delhi and Patna.