Flight Chongqing Jiangbei International Airport departs from Chongqing Chongqing Jiangbei International Airport at 23:20 and arrives at Sanya Phoenix International Airport at 01:40.
The flighttime is about 1h 20m. The distance travelled ("as the bird flies"): 498 Km. So the average speed is roughly 374 Km.
There is an 1 hour time difference between Chongqing and Sanya