The best month to fly between Shenzhen and Beijing is February and the most expensive month to fly is January. (Average prices, based on 215 datapoints.)
The best day to arrive at Shenzhen is Wednesday and it would be best to avoid Tuesday, as prices are on average 86.34% higher than on Wednesday. (Average prices, based on 214 datapoints.)
The cheapest airline flying from Shenzhen to Beijing is China Eastern Airlines. They are 58% cheaper than Air China. (Average prices, based on 242 datapoints.)
The best time to fly is at around 13. (Average prices, based on 352 datapoints.)