Flight International Airport departs from Dubai International Airport at 01:25 and arrives at Riyadh King Khaled International Airport at 02:25.
The flighttime is about 2h 00m. The distance travelled ("as the bird flies"): 964 Km. So the average speed is roughly 482 Km.
There is an 1 hour time difference between Dubai and Riyadh
The best day to arrive at Dubai is Sunday and it would be best to avoid Saturday, as prices are on average 66.44% higher than on Sunday. (Average prices, based on 695157 datapoints.)
We have a lot more statistics for flights EK 815 and between Dubai and Riyadh.