Flight Pudong International Airport departs from Shanghai Pudong International Airport at 17:30 and arrives at Chongqing Chongqing Jiangbei International Airport at 20:30.
The flighttime is about 4h 00m. The distance travelled ("as the bird flies"): 1687 Km. So the average speed is roughly 422 Km.
There is an 1 hour time difference between Shanghai and Chongqing