Flight Changi Airport departs from Singapore Changi Airport at 06:25 and arrives at Hong Kong Hong Kong International Airport at 10:20.
The flighttime is about 3h 55m. The distance travelled ("as the bird flies"): 1322 Km. So the average speed is roughly 338 Km.
The best month to arrive at Singapore is October and the most expensive month to fly is December. (Average prices, based on 312 datapoints.)
The best day to arrive at Singapore is Sunday and it would be best to avoid Wednesday, as prices are on average 265.08% higher than on Sunday. (Average prices, based on 2213968 datapoints.)
We have a lot more statistics for flights TR 978 and between Singapore and Hong Kong.