Flight Huanghua International Airport departs from Changsha Huanghua International Airport at 10:50 and arrives at Nantong Nantong Airport at 12:50.
The flighttime is about 10h 00m. The distance travelled ("as the bird flies"): 884 Km. So the average speed is roughly 88 Km.
There is an 8 hour time difference between Changsha and Nantong