Gangseo District is one of the 25 districts of Seoul, South Korea. It is located on the south side of the Han River. South Korea's third busiest airport, Gimpo International Airport, is located in Gon

Seoul Subway Line 9, operated by Seoul Line9 Operation, is a subway line in Seoul, part of the Seoul Metropolitan Subway. The line runs east from Gaehwa station or Gimpo International Airport station