Flight Shenzhen Bao'an International Airport departs from Shenzhen Shenzhen Bao'an International Airport at 13:25 and arrives at Tokyo Narita International Airport at 18:30.
The flighttime is about 4h 05m. The distance travelled ("as the bird flies"): 3069 Km. So the average speed is roughly 752 Km.
There is an 1 hour time difference between Shenzhen and Tokyo