Flight Soekarno–Hatta International Airport departs from Jakarta Soekarno–Hatta International Airport at 06:00 and arrives at Palembang Sultan Mahmud Badaruddin II International Airport at 07:10.
The flighttime is about 1h 10m. The distance travelled ("as the bird flies"): 238 Km. So the average speed is roughly 204 Km.
The best day to arrive at Jakarta is Thursday and it would be best to avoid Wednesday, as prices are on average 69.86% higher than on Thursday. (Average prices, based on 203217512 datapoints.)
We have a lot more statistics for flights GA 8506 and between Jakarta and Palembang.
