Flight Guangzhou Baiyun International Airport departs from Guangzhou Guangzhou Baiyun International Airport at 13:35 and arrives at Chongqing Chongqing Jiangbei International Airport at 15:35.
The flighttime is about 3h 00m. The distance travelled ("as the bird flies"): 778 Km. So the average speed is roughly 259 Km.
There is an 1 hour time difference between Guangzhou and Chongqing