Flight Soekarno–Hatta International Airport departs from Jakarta Soekarno–Hatta International Airport at 11:00 and arrives at Riyadh King Khaled International Airport at 16:30.
The flighttime is about 9h 30m. The distance travelled ("as the bird flies"): 6457 Km. So the average speed is roughly 680 Km.
There is an 4 hour time difference between Jakarta and Riyadh
The best day to arrive at Jakarta is Monday and it would be best to avoid Tuesday, as prices are on average 17.62% higher than on Monday. (Average prices, based on 9284 datapoints.)
We have a lot more statistics for flights GA 9653 and between Jakarta and Riyadh.