Flight Guangzhou Baiyun International Airport departs from Guangzhou Guangzhou Baiyun International Airport at 22:15 and arrives at Changzhou Changzhou Airport at 00:30.
The flighttime is about 10h 15m. The distance travelled ("as the bird flies"): 834 Km. So the average speed is roughly 81 Km.
There is an 8 hour time difference between Guangzhou and Changzhou
