Flight Soekarno–Hatta International Airport departs from Jakarta Soekarno–Hatta International Airport at 08:35 and arrives at Balikpapan Sultan Aji Muhammad Sulaiman Airport at 11:50.
The flighttime is about 2h 15m. The distance travelled ("as the bird flies"): 1156 Km. So the average speed is roughly 514 Km.
There is an 1 hour time difference between Jakarta and Balikpapan