Flight Taoxian Airport departs from Shenyang Taoxian Airport at 18:00 and arrives at Seoul Incheon International Airport at 20:50.
The flighttime is about 1h 50m. The distance travelled ("as the bird flies"): 424 Km. So the average speed is roughly 231 Km.
There is an 1 hour time difference between Shenyang and Seoul