Nanjing Lukou International Airport is the main airport serving Nanjing (the capital of Jiangsu Province) and a major airport serving the Yangtze River Delta area. As of 2020, it is the 12th busiest civil airport in China, Dropping one place from 2019 after being overtaken by Zhengzhou Xinzheng International Airport. It is located in the suburban Jiangning District, over south of the city center, and is connected to Nanjing and neighboring towns by expressways. Phase I of the Ninggao Intercity Line and Line S1 of the Nanjing Metro link the airport with Nanjing South railway station. Nanjing is the hub for China Eastern Airlines' Jiangsu Company, Shenzhen Airlines' Jiangsu branch and Juneyao Air's Jiangsu branch. China Southern Airlines as well operates a considerable number of flights there. Despite not operating as much flights as some other airlines, Beijing Capital Airlines and Air Travel also set up bases in Nanjing. Nanjing is the main base for China Postal Airlines, with pure cargo service to all major cities in China, handling express mail and cargo transportation for China Post. In 2020, the airport handled 19,906,576 passengers and 389,362.4 tons of freight after experiencing a -34.9% drop in passenger traffic due to the impact of COVID-19 pandemic. History Construction of Nanjing Lukou International Airport started on 28 February 1995, and was completed two years later. When the airport opened on 1 July 1997, all civilian operations were transferred to it from Nanjing Dajiaochang Airport, and Nanjing Dajiaochang was converted to a Chinese military air base. Although Nanjing Lukou had been designated an international airport since commencing operations, China's state administrations only approved it for foreign aircraft on 18 November 1997. In 2006, China Post started building its express logistics center at Nanjing Lukou to handle its express mail services. Initial construction was completed by 2009, with additional facilities and functions added continuously. The final project, as planned, would be the largest in Asia and the third-largest in the world of its kind. In 2009, the airport handled 10 million passengers. On March 26, 2010, Singapore airlines officially ceases its operation between Singapore Changi and Nanjing. In 2013, that number surpassed 15 million, which was 3 million above the terminal's designed operational capacity. In preparation for the 2014 Summer Youth Olympics, hosted by Nanjing, Terminal 2 was completed after more than three years of construction. Also completed were a new parallel runway with taxiways,