Flight International Airport departs from Dubai International Airport at 17:15 and arrives at Lucknow Chaudhary Charan Singh Airport at 22:15.
The flighttime is about 3h 30m. The distance travelled ("as the bird flies"): 2838 Km. So the average speed is roughly 811 Km.
There is an 1.5 hour time difference between Dubai and Lucknow