Flight Guangzhou Baiyun International Airport departs from Guangzhou Guangzhou Baiyun International Airport at 12:40 and arrives at Bangkok Suvarnabhumi Airport at 14:30.
The flighttime is about 2h 50m. The distance travelled ("as the bird flies"): 1426 Km. So the average speed is roughly 503 Km.
There is an 1 hour time difference between Guangzhou and Bangkok
THB
