Flight Yongqiang Airport departs from Wenzhou Yongqiang Airport at 12:05 and arrives at Chengdu Chengdu Shuangliu International Airport at 15:15.
The flighttime is about 4h 10m. The distance travelled ("as the bird flies"): 1883 Km. So the average speed is roughly 452 Km.
There is an 1 hour time difference between Wenzhou and Chengdu