Flight King Khaled International Airport departs from Riyadh King Khaled International Airport at 19:30 and arrives at Jeddah King Abdulaziz International Airport at 21:30.
The flighttime is about 2h 00m. The distance travelled ("as the bird flies"): 880 Km. So the average speed is roughly 440 Km.
The best day to arrive at Riyadh is Sunday and it would be best to avoid Friday, as prices are on average 239.98% higher than on Sunday. (Average prices, based on 1995969 datapoints.)
We have a lot more statistics for flights XY 45 and between Riyadh and Jeddah.