Flight Incheon International Airport departs from Seoul Incheon International Airport at 08:55 and arrives at Guangzhou Guangzhou Baiyun International Airport at 12:05.
The flighttime is about 4h 10m. The distance travelled ("as the bird flies"): 1648 Km. So the average speed is roughly 396 Km.
There is an 1 hour time difference between Seoul and Guangzhou
