Flight Changi Airport departs from Singapore Changi Airport at 00:40 and arrives at Amsterdam Amsterdam Airport Schiphol at 07:55.
The flighttime is about 13h 15m. The distance travelled ("as the bird flies"): 10461 Km. So the average speed is roughly 790 Km.
There is an 6 hour time difference between Singapore and Amsterdam
The best day to arrive at Singapore is Tuesday and it would be best to avoid Sunday, as prices are on average 103.21% higher than on Tuesday. (Average prices, based on 325886 datapoints.)
We have a lot more statistics for flights QF 4235 and between Singapore and Amsterdam.