Flight Wujiaba International Airport departs from Kunming Wujiaba International Airport at 14:50 and arrives at Chiang Mai Chiang Mai International Airport at 15:20.
The flighttime is about 1h 30m. The distance travelled ("as the bird flies"): 439 Km. So the average speed is roughly 293 Km.
There is an 1 hour time difference between Kunming and Chiang Mai