Flight Heathrow Airport departs from London Heathrow Airport at 14:05 and arrives at Riyadh King Khaled International Airport at 22:45. The flighttime is about 6h 40m. The distance travelled ("as the bird flies"): 5845 Km. So the average speed is roughly 877 Km. There is an 2 hour time difference between London and Riyadh
