Flight Guangzhou Baiyun International Airport departs from Guangzhou Guangzhou Baiyun International Airport at 13:15 and arrives at Chengdu Chengdu Shuangliu International Airport at 15:45.
The flighttime is about 3h 30m. The distance travelled ("as the bird flies"): 1069 Km. So the average speed is roughly 305 Km.
There is an 1 hour time difference between Guangzhou and Chengdu