Flight Yongqiang Airport departs from Wenzhou Yongqiang Airport at 17:30 and arrives at Chengdu Chengdu Shuangliu International Airport at 20:35.
The flighttime is about 4h 05m. The distance travelled ("as the bird flies"): 1883 Km. So the average speed is roughly 461 Km.
There is an 1 hour time difference between Wenzhou and Chengdu