Flight Chongqing Jiangbei International Airport departs from Chongqing Chongqing Jiangbei International Airport at 21:25 and arrives at Shanghai Pudong International Airport at 23:45.
The flighttime is about 1h 20m. The distance travelled ("as the bird flies"): 1687 Km. So the average speed is roughly 1265 Km.
There is an 1 hour time difference between Chongqing and Shanghai