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 20:30.
The flighttime is about 5h 10m. The distance travelled ("as the bird flies"): 1340 Km. So the average speed is roughly 259 Km.
There is an 1 hour time difference between Jakarta and Hong Kong
The best day to arrive at Jakarta is Saturday and it would be best to avoid Friday, as prices are on average 83.04% higher than on Saturday. (Average prices, based on 24842970 datapoints.)
We have a lot more statistics for flights BA 4574 and between Jakarta and Hong Kong.
