Flight Phuket International Airport departs from Phuket Phuket International Airport at 03:40 and arrives at Shanghai Pudong International Airport at 09:30.
The flighttime is about 4h 50m. The distance travelled ("as the bird flies"): 2707 Km. So the average speed is roughly 560 Km.
There is an 1 hour time difference between Phuket and Shanghai