Flight King Abdulaziz International Airport departs from Jeddah King Abdulaziz International Airport at 21:00 and arrives at Riyadh King Khaled International Airport at 22:45.
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 Wednesday and it would be best to avoid Friday, as prices are on average 487.05% higher than on Wednesday. (Average prices, based on 2001498 datapoints.)
We have a lot more statistics for flights SV 1048 and between Jeddah and Riyadh.