Flight Shenzhen Bao'an International Airport departs from Shenzhen Shenzhen Bao'an International Airport at 23:40 and arrives at Haikou Haikou Meilan International Airport at 01:00.
The flighttime is about 1h 20m. The distance travelled ("as the bird flies"): 389 Km. So the average speed is roughly 292 Km.