Beijing Capital International Airport was the world's second-busiest airport in 2013. [Photo/Agencies]

Beijing Capital International Airport was the world's second-busiest airport in 2013, serving more than 83.69 million passengers as of Dec 31, an increase of 2.2 percent from 2012, Beijing Youth Daily reported.

The airport ranked No 2 in terms of passenger throughput for the third year in a row, and handled 567,000 flights in 2013, an increase of 1.9 percent compared with 2012.

So far, a total of 92 airlines operate in the airport, connecting 51 countries and regions.

Since Beijing introduced its 72-hour visa-free policy for overseas tourists on Jan 1, 2013, 14,000 passengers have taken advantage of the offer at Beijing Capital International Airport.