Flight Kempegowda International Airport departs from Bangalore Kempegowda International Airport at 04:50 and arrives at Kolkata Netaji Subhas Chandra Bose International Airport at 07:20.
The flighttime is about 2h 30m. The distance travelled ("as the bird flies"): 1202 Km. So the average speed is roughly 481 Km.
The best month to arrive at Bangalore is August and the most expensive month to fly is March. (Average prices, based on 549 datapoints.)
We have a lot more statistics for flights I5 and between Bangalore and Kolkata.