Flight King Khaled International Airport departs from Riyadh King Khaled International Airport at 22:50 and arrives at Jazan Jizan Regional Airport at 00:50.
The flighttime is about 5h 00m. The distance travelled ("as the bird flies"): 784 Km. So the average speed is roughly 157 Km.
There is an 3 hour time difference between Riyadh and Jazan