Beijing Daxing International Airport, a multibillion-dollar project that is located on the border of Beijing and Langfang, North China's Hebei Province, is under final construction and is expected to open in September this year.

That, together with the existing Beijing Capital International Airport's annual capacity of 96 million passengers, would make Beijing one of the world's busiest city airport systems. This would be similar to the volumes handled by London's six airports of 170 million, based on 2017 figures.