Flight Guangzhou Baiyun International Airport departs from Guangzhou Guangzhou Baiyun International Airport at 12:40 and arrives at Chongqing Chongqing Jiangbei International Airport at 14:50.
The flighttime is about 3h 10m. The distance travelled ("as the bird flies"): 778 Km. So the average speed is roughly 246 Km.
There is an 1 hour time difference between Guangzhou and Chongqing