Flight King Khaled International Airport departs from Riyadh King Khaled International Airport at 09:50 and arrives at Dubai International Airport at 12:35.
The flighttime is about 1h 45m. The distance travelled ("as the bird flies"): 964 Km. So the average speed is roughly 551 Km.
There is an 1 hour time difference between Riyadh and Dubai
The best day to arrive at Riyadh is Saturday and it would be best to avoid Sunday, as prices are on average 73.29% higher than on Saturday. (Average prices, based on 620770 datapoints.)
We have a lot more statistics for flights EK 820 and between Riyadh and Dubai.