Flight Chongqing Jiangbei International Airport departs from Chongqing Chongqing Jiangbei International Airport at 20:15 and arrives at Shenzhen Shenzhen Bao'an International Airport at 22:40.
The flighttime is about 1h 25m. The distance travelled ("as the bird flies"): 841 Km. So the average speed is roughly 594 Km.
There is an 1 hour time difference between Chongqing and Shenzhen