Flight Changi Airport departs from Singapore Changi Airport at 08:10 and arrives at Taipei Taipei Songshan Airport at 12:55.
The flighttime is about 12h 45m. The distance travelled ("as the bird flies"): 2167 Km. So the average speed is roughly 170 Km.
There is an 8 hour time difference between Singapore and Taipei
The best day to arrive at Singapore is Sunday and it would be best to avoid Monday, as prices are on average 268.7% higher than on Sunday. (Average prices, based on 118675 datapoints.)
We have a lot more statistics for flights SQ 876 and between Singapore and Taipei.