Flight Chaudhary Charan Singh Airport departs from Lucknow Chaudhary Charan Singh Airport at 08:50 and arrives at Riyadh King Khaled International Airport at 11:20.
The flighttime is about 5h 00m. The distance travelled ("as the bird flies"): 3802 Km. So the average speed is roughly 760 Km.
There is an 2.5 hour time difference between Lucknow and Riyadh