Flight Soekarno–Hatta International Airport departs from Jakarta Soekarno–Hatta International Airport at 14:20 and arrives at Hong Kong Hong Kong International Airport at 20:25.
The flighttime is about 5h 05m. The distance travelled ("as the bird flies"): 1340 Km. So the average speed is roughly 264 Km.
There is an 1 hour time difference between Jakarta and Hong Kong
The best month to arrive at Jakarta is September and the most expensive month to fly is February. (Average prices, based on 205 datapoints.)
We have a lot more statistics for flights BA 4574 and between Jakarta and Hong Kong.