Flight Hong Kong International Airport departs from Hong Kong Hong Kong International Airport at 08:40 and arrives at Singapore Changi Airport at 12:25.
The flighttime is about 3h 45m. The distance travelled ("as the bird flies"): 1322 Km. So the average speed is roughly 353 Km.
The best day to arrive at Hong Kong is Friday and it would be best to avoid Monday, as prices are on average 29.04% higher than on Friday. (Average prices, based on 3624305 datapoints.)
We have a lot more statistics for flights CX 759 and between Hong Kong and Singapore.
