Flight Changi Airport departs from Singapore Changi Airport at 00:45 and arrives at Brisbane Brisbane Airport at 10:20.
The flighttime is about 7h 35m. The distance travelled ("as the bird flies"): 5683 Km. So the average speed is roughly 749 Km.
There is an 2 hour time difference between Singapore and Brisbane
The best day to arrive at Singapore is Wednesday and it would be best to avoid Monday, as prices are on average 105.83% higher than on Wednesday. (Average prices, based on 128390 datapoints.)
We have a lot more statistics for flights SQ 255 and between Singapore and Brisbane.
