Flight Lukou Airport departs from Nanjing Lukou Airport at 07:20 and arrives at Guangzhou Guangzhou Baiyun International Airport at 09:50.
The flighttime is about 2h 30m. The distance travelled ("as the bird flies"): 740 Km. So the average speed is roughly 296 Km.
The best day to arrive at Nanjing is Monday and it would be best to avoid Saturday, as prices are on average 659.8% higher than on Monday. (Average prices, based on 42800 datapoints.)
We have a lot more statistics for flights ZH 9878 and between Nanjing and Guangzhou.