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 170.08% higher than on Thursday. (Average prices, based on 368 datapoints.)
At Beijing the most flights depart around 12:00. (Hourly flights, based on 321 datapoints.)
From Beijing it is on average the cheapest to fly to Shanghai and to Guangzhou. (Average prices, based on 237 datapoints.)
From Beijing most of the flights depart to Guangzhou, second best connected from Beijing is Shanghai. (Daily flights, based on 93 datapoints.)