Flight King Khaled International Airport departs from Riyadh King Khaled International Airport at 04:00 and arrives at Peshawar Bacha Khan International Airport at 10:15.
The flighttime is about 4h 15m. The distance travelled ("as the bird flies"): 2800 Km. So the average speed is roughly 659 Km.
There is an 2 hour time difference between Riyadh and Peshawar