Flight Soekarno–Hatta International Airport departs from Jakarta Soekarno–Hatta International Airport at 08:00 and arrives at Palembang Sultan Mahmud Badaruddin II International Airport at 09:05.
The flighttime is about 1h 05m. The distance travelled ("as the bird flies"): 238 Km. So the average speed is roughly 220 Km.
The best month to arrive at Jakarta is March and the most expensive month to fly is June. (Average prices, based on 5296 datapoints.)
We have a lot more statistics for flights JT 6155 and between Jakarta and Palembang.