Flight Changi Airport departs from Singapore Changi Airport at 12:45 and arrives at Hong Kong Hong Kong International Airport at 17:00.
The flighttime is about 4h 15m. The distance travelled ("as the bird flies"): 1322 Km. So the average speed is roughly 311 Km.
The best month to arrive at Singapore is June and the most expensive month to fly is August. (Average prices, based on 1193 datapoints.)
The best day to arrive at Singapore is Wednesday and it would be best to avoid Saturday, as prices are on average 195.17% higher than on Wednesday. (Average prices, based on 3516092 datapoints.)
We have a lot more statistics for flights CX 652 and between Singapore and Hong Kong.