Flight Soekarno–Hatta International Airport departs from Jakarta Soekarno–Hatta International Airport at 18:25 and arrives at Kuala Lumpur Kuala Lumpur International Airport at 21:35.
The flighttime is about 2h 10m. The distance travelled ("as the bird flies"): 600 Km. So the average speed is roughly 277 Km.
There is an 1 hour time difference between Jakarta and Kuala Lumpur
The best day to arrive at Jakarta is Friday and it would be best to avoid Tuesday, as prices are on average 212.3% higher than on Friday. (Average prices, based on 295995715 datapoints.)
We have a lot more statistics for flights KE 722 and between Jakarta and Kuala Lumpur.