Flight Soekarno–Hatta International Airport departs from Jakarta Soekarno–Hatta International Airport at 09:20 and arrives at Samarinda APT Pranoto Airport at 12:45.
The flighttime is about 2h 25m. The distance travelled ("as the bird flies"): 1201 Km. So the average speed is roughly 497 Km.
There is an 1 hour time difference between Jakarta and Samarinda
