Flight Taoyuan International Airport departs from Taipei Taoyuan International Airport at 16:40 and arrives at Busan Gimhae International Airport at 19:55.
The flighttime is about 2h 15m. The distance travelled ("as the bird flies"): 1071 Km. So the average speed is roughly 476 Km.
There is an 1 hour time difference between Taipei and Busan
