The best day to arrive at Shenzhen is Wednesday and it would be best to avoid Sunday, as prices are on average 172.53% higher than on Wednesday. (Average prices, based on 223 datapoints.)
The cheapest airline flying to Shenzhen is AirAsia. They are 83% cheaper than Shenzhen Airlines. (Average prices, based on 221 datapoints.)
At Shenzhen the most flights depart around 19:00. (Hourly flights, based on 519 datapoints.)
From Shenzhen most of the flights depart to Shanghai, second best connected from Shenzhen is Beijing. (Daily flights, based on 133 datapoints.)