Flight Guangzhou Baiyun International Airport departs from Guangzhou Guangzhou Baiyun International Airport at 09:35 and arrives at Seoul Incheon International Airport at 13:55.
The flighttime is about 3h 20m. The distance travelled ("as the bird flies"): 1648 Km. So the average speed is roughly 494 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 3472640 datapoints.)
We have a lot more statistics for flights CZ 337 and between Guangzhou and Seoul.