Flight Soekarno–Hatta International Airport departs from Jakarta Soekarno–Hatta International Airport at 18:10 and arrives at Jakarta Halim Perdanakusuma International Airport at 21:05.
The flighttime is about 2h 55m. The distance travelled ("as the bird flies"): 26 Km. So the average speed is roughly 9 Km.
The best day to arrive at Jakarta is Tuesday and it would be best to avoid Saturday, as prices are on average 17.64% higher than on Tuesday. (Average prices, based on 211174 datapoints.)
We have a lot more statistics for flights QG 9688 and between Jakarta and Jakarta.