Flight Shenzhen Bao'an International Airport departs from Shenzhen Shenzhen Bao'an International Airport at 00:15 and arrives at Bangkok Suvarnabhumi Airport at 02:00.
The flighttime is about 2h 45m. The distance travelled ("as the bird flies"): 1477 Km. So the average speed is roughly 537 Km.
There is an 1 hour time difference between Shenzhen and Bangkok