Flight Changi Airport departs from Singapore Changi Airport at 08:20 and arrives at Taipei Taoyuan International Airport at 13:10.
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 Saturday and it would be best to avoid Tuesday, as prices are on average 132.23% higher than on Saturday. (Average prices, based on 665358 datapoints.)
We have a lot more statistics for flights BR 2202 and between Singapore and Taipei.