Flight Changi Airport departs from Singapore Changi Airport at 19:25 and arrives at Manila Ninoy Aquino International Airport at 23:00.
The flighttime is about 3h 35m. The distance travelled ("as the bird flies"): 1963 Km. So the average speed is roughly 548 Km.
The best day to arrive at Singapore is Tuesday and it would be best to avoid Thursday, as prices are on average 210.88% higher than on Tuesday. (Average prices, based on 8718670 datapoints.)
We have a lot more statistics for flights PR 3856 and between Singapore and Manila.