Flight Pudong International Airport departs from Shanghai Pudong International Airport at 19:00 and arrives at Chiang Mai Chiang Mai International Airport at 22:20.
The flighttime is about 4h 20m. The distance travelled ("as the bird flies"): 2571 Km. So the average speed is roughly 593 Km.
There is an 1 hour time difference between Shanghai and Chiang Mai