Flight Brisbane Airport departs from Brisbane Brisbane Airport at 16:10 and arrives at Bandar Seri Begawan Brunei International Airport at 21:30.
The flighttime is about 7h 20m. The distance travelled ("as the bird flies"): 4815 Km. So the average speed is roughly 657 Km.
There is an 2 hour time difference between Brisbane and Bandar Seri Begawan