Flight King Abdulaziz International Airport departs from Jeddah King Abdulaziz International Airport at 18:00 and arrives at Riyadh King Khaled International Airport at 19:45.
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 Wednesday, as prices are on average 141.77% higher than on Thursday. (Average prices, based on 2802901 datapoints.)
We have a lot more statistics for flights SV 1042 and between Jeddah and Riyadh.
