Flight Brisbane Airport departs from Brisbane Brisbane Airport at 10:30 and arrives at Singapore Changi Airport at 16:50.
The flighttime is about 8h 20m. The distance travelled ("as the bird flies"): 5683 Km. So the average speed is roughly 682 Km.
There is an 2 hour time difference between Brisbane and Singapore
The best day to arrive at Brisbane is Monday and it would be best to avoid Friday, as prices are on average 260.18% higher than on Monday. (Average prices, based on 45327 datapoints.)
We have a lot more statistics for flights QF 51 and between Brisbane and Singapore.