Flight Chengdu Shuangliu International Airport departs from Chengdu Chengdu Shuangliu International Airport at 07:30 and arrives at Beijing Daxing International Airport at 10:00.
The flighttime is about 1h 30m. The distance travelled ("as the bird flies"): 1424 Km. So the average speed is roughly 949 Km.
There is an 1 hour time difference between Chengdu and Beijing