Flight Lok Nayak Jayaprakash Airport departs from Patna Lok Nayak Jayaprakash Airport at 09:55 and arrives at Kolkata Netaji Subhas Chandra Bose International Airport at 11:05.
The flighttime is about 1h 10m. The distance travelled ("as the bird flies"): 374 Km. So the average speed is roughly 321 Km.
The best day to arrive at Patna is Sunday and it would be best to avoid Thursday, as prices are on average 253.01% higher than on Sunday. (Average prices, based on 104355 datapoints.)
We have a lot more statistics for flights 6E 663 and between Patna and Kolkata.