Flight Guangzhou Baiyun International Airport departs from Guangzhou Guangzhou Baiyun International Airport at 13:15 and arrives at Seoul Incheon International Airport at 17:25.
The flighttime is about 3h 10m. The distance travelled ("as the bird flies"): 1648 Km. So the average speed is roughly 520 Km.
There is an 1 hour time difference between Guangzhou and Seoul
The best day to arrive at Guangzhou is Friday and it would be best to avoid Thursday, as prices are on average 140.21% higher than on Friday. (Average prices, based on 3487737 datapoints.)
We have a lot more statistics for flights KE 866 and between Guangzhou and Seoul.