Beijing Capital International Airport is the main international airport serving Beijing. It is located 32 km (20 mi) northeast of Beijing's city centre, in an enclave of Chaoyang District and the surroundings of that enclave in suburban Shunyi District.
The airport is owned and operated by the Beijing Capital International Airport Company Limited, a state-controlled company. The airport's IATA Airport code, PEK, is based on the city's former romanized name, Peking.
Beijing Capital has rapidly ascended in rankings of the world's busiest airports in the past decade. It had become the busiest airport in Asia in terms of passenger traffic and total traffic movements by 2009. It has been the world's second busiest airport in terms of passenger traffic since 2010.
In terms of cargo traffic, Beijing airport has also witnessed rapid growth. By 2012, the airport had become the 13th busiest airport in the world by cargo traffic, registering 1,787,027 tons.
According to en.wikipedia