Flight Soekarno–Hatta International Airport departs from Jakarta Soekarno–Hatta International Airport at 23:15 and arrives at Osaka International Airport at 08:15.
The flighttime is about 7h 00m. The distance travelled ("as the bird flies"): 3809 Km. So the average speed is roughly 544 Km.
There is an 2 hour time difference between Jakarta and Osaka