The best month to fly between Shenzhen and Beijing is February and the most expensive month to fly is January. (Average prices, based on 243 datapoints.)
The best day to arrive at Shenzhen is Monday and it would be best to avoid Tuesday, as prices are on average 47.69% higher than on Monday. (Average prices, based on 253 datapoints.)
The cheapest airline flying from Shenzhen to Beijing is Hainan Airlines. They are 24% cheaper than China Southern Airlines. (Average prices, based on 264 datapoints.)