Flight Changi Airport departs from Singapore Changi Airport at 14:00 and arrives at Taipei Taoyuan International Airport at 18:50.
The flighttime is about 4h 50m. The distance travelled ("as the bird flies"): 2134 Km. So the average speed is roughly 442 Km.
The best day to arrive at Singapore is Wednesday and it would be best to avoid Monday, as prices are on average 77.79% higher than on Wednesday. (Average prices, based on 675004 datapoints.)
We have a lot more statistics for flights BR 772 and between Singapore and Taipei.
THB