Please be aware that Beijing has multiple airports and that these results are only for Beijing Capital International Airport.
The best month to arrive at Beijing is February and the most expensive month to fly is August. (Average prices, based on 366 datapoints.)
The best day to arrive at Beijing is Saturday and it would be best to avoid Friday, as prices are on average 128.22% higher than on Saturday. (Average prices, based on 359 datapoints.)
The cheapest airline flying to Beijing is Hong Kong Airlines. They are 72% cheaper than China Southern Airlines. (Average prices, based on 403 datapoints.)
At Beijing the most flights depart around 01:00. (Hourly flights, based on 452 datapoints.)