Flight Xinzheng Airport departs from Zhengzhou Xinzheng Airport at 18:20 and arrives at Hefei Hefei Luogang International Airport at 12:55.The flight has a short stop at Guangzhou.
The flighttime is about 2h 35m. The distance travelled ("as the bird flies"): 406 Km. So the average speed is roughly 157 Km.
There is an 8 hour time difference between Zhengzhou and Hefei