Incheon International Airport also claims that it has only a 0.0001% baggage mishandling rate. Located 48 km (30 mi) west of Seoul, the capital and the largest city of South Korea, Incheon International Airport is the main hub for Korean Air, Asiana Airlines, Jeju Air, and Polar Air Cargo. The airport serves as a hub for international civilian air transportation and cargo traffic in East Asia.