Flight Takamatsu Airport departs from Takamatsu Takamatsu Airport at 18:55 and arrives at Taipei Taoyuan International Airport at 21:05.
The flighttime is about 3h 10m. The distance travelled ("as the bird flies"): 1547 Km. So the average speed is roughly 489 Km.
There is an 1 hour time difference between Takamatsu and Taipei