Flight Chaudhary Charan Singh Airport departs from Lucknow Chaudhary Charan Singh Airport at 17:00 and arrives at Kolkata Netaji Subhas Chandra Bose International Airport at 20:50.The flight has a short stop at Patna.
The flighttime is about 3h 50m. The distance travelled ("as the bird flies"): 842 Km. So the average speed is roughly 220 Km.
The best day to arrive at Lucknow is Friday and it would be best to avoid Saturday, as prices are on average 244.24% higher than on Friday. (Average prices, based on 174307 datapoints.)
We have a lot more statistics for flights 6E 342 and between Lucknow and Kolkata.