Flight Sydney Airport departs from Sydney Sydney Airport at 10:15 and arrives at Hong Kong Hong Kong International Airport at 17:55.
The flighttime is about 9h 40m. The distance travelled ("as the bird flies"): 5599 Km. So the average speed is roughly 579 Km.
There is an 2 hour time difference between Sydney and Hong Kong
The best day to arrive at Sydney is Wednesday and it would be best to avoid Friday, as prices are on average 39.15% higher than on Wednesday. (Average prices, based on 27007 datapoints.)
We have a lot more statistics for flights QF 127 and between Sydney and Hong Kong.
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