Flight Changi Airport departs from Singapore Changi Airport at 09:20 and arrives at Manila Ninoy Aquino International Airport at 13:05.
The flighttime is about 3h 45m. The distance travelled ("as the bird flies"): 1963 Km. So the average speed is roughly 523 Km.
The best day to arrive at Singapore is Saturday and it would be best to avoid Tuesday, as prices are on average 863.55% higher than on Saturday. (Average prices, based on 8828065 datapoints.)
We have a lot more statistics for flights PR 3852 and between Singapore and Manila.