Please be aware that Beijing has multiple airports and that these results are for all airports serving the city.
The best day to arrive at Beijing is Thursday and it would be best to avoid Friday, as prices are on average 183.51% higher than on Thursday. (Average prices, based on 426 datapoints.)
The cheapest airline flying to Beijing is Sichuan Airlines. They are 78% cheaper than Shenzhen Airlines. (Average prices, based on 271 datapoints.)
At Beijing the most flights depart around 08:00. (Hourly flights, based on 639 datapoints.)
From Beijing it is on average the cheapest to fly to Guangzhou and to Shenzhen. (Average prices, based on 122 datapoints.)
From Beijing most of the flights depart to Guangzhou, second best connected from Beijing is Shanghai. (Daily flights, based on 229 datapoints.)