Flight Incheon International Airport departs from Seoul Incheon International Airport at 20:05 and arrives at Taipei Taoyuan International Airport at 21:50.
The flighttime is about 2h 45m. The distance travelled ("as the bird flies"): 958 Km. So the average speed is roughly 348 Km.
There is an 1 hour time difference between Seoul and Taipei
The best day to arrive at Seoul is Monday and it would be best to avoid Thursday, as prices are on average 171.57% higher than on Monday. (Average prices, based on 2751992 datapoints.)
We have a lot more statistics for flights KE 5693 and between Seoul and Taipei.