Gimpo International Airport an extension to Seoul Station which opened in December 2010. Seoul Subway Line 9 also links the airport to the Gangnam area. For many years, the airport was served by the Gimpo Line, a railway line that no longer exists. In the 1990s, Seoul Subway Line 5 was extended to Gimpo. Gimpo International Airport Gimpo International Airport ( ), commonly known as Gimpo Airport (formerly Kimpo International Airport), is located in the far western end of Seoul, some west of the Central District of Seoul. Gimpo was the main international airport for Seoul and South Korea before being replaced by
Incheon International Airport claim that average departure and arrival takes 19 minutes and 12 minutes, respectively, as compared to worldwide average of 60 minutes and 45 minutes, respectively, ranking it among the fastest airports in the world for customs processing. Its duty-free shopping mall has been rated the world's best for three years in a row in 2013 by Business Traveller. Incheon International Airport also claims that it has only a 0.0001% baggage mishandling rate. The airport opened for business on March 29, 2001 to replace the older Gimpo International Airport, which now serves mostly domestic destinations and shuttle flights to several East