Flight Hong Kong International Airport departs from Hong Kong Hong Kong International Airport at 15:05 and arrives at Singapore Changi Airport at 19:15.
The flighttime is about 4h 10m. The distance travelled ("as the bird flies"): 1322 Km. So the average speed is roughly 317 Km.
The best month to arrive at Hong Kong is November and the most expensive month to fly is July. (Average prices, based on 906 datapoints.)
The best day to arrive at Hong Kong is Saturday and it would be best to avoid Wednesday, as prices are on average 123.13% higher than on Saturday. (Average prices, based on 2728035 datapoints.)
We have a lot more statistics for flights CX 635 and between Hong Kong and Singapore.
