Flight Soekarno–Hatta International Airport departs from Jakarta Soekarno–Hatta International Airport at 01:20 and arrives at Manila Ninoy Aquino International Airport at 06:15.
The flighttime is about 3h 55m. The distance travelled ("as the bird flies"): 1825 Km. So the average speed is roughly 466 Km.
There is an 1 hour time difference between Jakarta and Manila