Flight Lok Nayak Jayaprakash Airport departs from Patna Lok Nayak Jayaprakash Airport at 20:40 and arrives at Kolkata Netaji Subhas Chandra Bose International Airport at 21:50.
The flighttime is about 1h 10m. The distance travelled ("as the bird flies"): 374 Km. So the average speed is roughly 321 Km.