Incheon International Airport of 1988, international air traffic to Korea increased. In the 1990s, it became apparent that Gimpo International Airport could not cope with the increase in air traffic. To reduce the load on Gimpo International Airport, the government decided to build a new airport. The new airport was originally planned to be located in Cheongju, 124 km from Seoul, but due to its distance, it was opposed by Seoul and Gyeonggi citizens. Hwaseong was the other choice, but it was also rejected due to similar reasons. Finally the area chosen was Incheon. In November 1992, the construction of the Incheon airport
Gimpo International Airport two passenger terminals, and one cargo terminal. In 2016, the ten carriers with the largest percentage of passengers flying into, out of, or through Gimpo International Airport are as follows: Korea Airports Corporation (KAC) has its headquarters on the airport property. The Aviation and Railway Accident Investigation Board (ARAIB) has its FDR/CVR Analysis and Wreckage Laboratory on the property of the airport. When the predecessor agency Korea Aviation Accident Investigation Board (KAIB) existed, its CVR/FDR and wreckage laboratory was located on the airport property. On 23 March 2007 the AREX airport express line started operations to Incheon International Airport, with