Flight King Abdulaziz International Airport departs from Jeddah King Abdulaziz International Airport at 23:00 and arrives at Riyadh King Khaled International Airport at 00:45.
The flighttime is about 1h 45m. The distance travelled ("as the bird flies"): 880 Km. So the average speed is roughly 503 Km.
The best day to arrive at Jeddah is Thursday and it would be best to avoid Saturday, as prices are on average 103.61% higher than on Thursday. (Average prices, based on 2001202 datapoints.)
We have a lot more statistics for flights SV 1052 and between Jeddah and Riyadh.