Flight Brisbane Airport departs from Brisbane Brisbane Airport at 11:05 and arrives at Singapore Changi Airport at 17:20.
The flighttime is about 8h 15m. The distance travelled ("as the bird flies"): 5683 Km. So the average speed is roughly 689 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 45382 datapoints.)
We have a lot more statistics for flights QF 51 and between Brisbane and Singapore.