Flight Ninoy Aquino International Airport departs from Manila Ninoy Aquino International Airport at 16:55 and arrives at Singapore Changi Airport at 20:30.
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 Manila is Tuesday and it would be best to avoid Thursday, as prices are on average 44.8% higher than on Tuesday. (Average prices, based on 21546641 datapoints.)
We have a lot more statistics for flights SQ 919 and between Manila and Singapore.