Flight Suvarnabhumi Airport departs from Bangkok Suvarnabhumi Airport at 13:45 and arrives at Guangzhou Guangzhou Baiyun International Airport at 18:15.
The flighttime is about 3h 30m. The distance travelled ("as the bird flies"): 1426 Km. So the average speed is roughly 407 Km.
There is an 1 hour time difference between Bangkok and Guangzhou
The best day to arrive at Bangkok is Monday and it would be best to avoid Saturday, as prices are on average 111.13% higher than on Monday. (Average prices, based on 2029757 datapoints.)
We have a lot more statistics for flights CZ 8100 and between Bangkok and Guangzhou.