Flight Kempegowda International Airport departs from Bangalore Kempegowda International Airport at 18:45 and arrives at Patna Lok Nayak Jayaprakash Airport at 21:30.
The flighttime is about 2h 45m. The distance travelled ("as the bird flies"): 847 Km. So the average speed is roughly 308 Km.
The best day to arrive at Bangalore is Saturday and it would be best to avoid Friday, as prices are on average 438.1% higher than on Saturday. (Average prices, based on 105323 datapoints.)
We have a lot more statistics for flights SG 531 and between Bangalore and Patna.