Flight Changi Airport departs from Singapore Changi Airport at 00:30 and arrives at Manila Ninoy Aquino International Airport at 04:20.
The flighttime is about 3h 50m. The distance travelled ("as the bird flies"): 1963 Km. So the average speed is roughly 512 Km.
The best day to arrive at Singapore is Tuesday and it would be best to avoid Friday, as prices are on average 95.81% higher than on Tuesday. (Average prices, based on 8846719 datapoints.)
We have a lot more statistics for flights PR 510 and between Singapore and Manila.