Flight Brisbane Airport departs from Brisbane Brisbane Airport at 08:45 and arrives at Cairns Cairns Airport at 11:15.
The flighttime is about 2h 30m. The distance travelled ("as the bird flies"): 1295 Km. So the average speed is roughly 518 Km.
The best day to arrive at Brisbane is Thursday and it would be best to avoid Saturday, as prices are on average 105.82% higher than on Thursday. (Average prices, based on 107063 datapoints.)
We have a lot more statistics for flights JQ 930 and between Brisbane and Cairns.