Flight Changi Airport departs from Singapore Changi Airport at 01:30 and arrives at Manila Ninoy Aquino International Airport at 05:40.
The flighttime is about 4h 10m. The distance travelled ("as the bird flies"): 1963 Km. So the average speed is roughly 471 Km.
The best day to arrive at Singapore is Monday and it would be best to avoid Sunday, as prices are on average 113.54% higher than on Monday. (Average prices, based on 8724473 datapoints.)
We have a lot more statistics for flights 5J 804 and between Singapore and Manila.