Where was the airline which has Gimhae International Airport  as the main hub based?
Gimhae International Airport Gimhae International Airport (formerly Kimhae International Airport) (IATA: PUS, ICAO: RKPK) is located on the western end of Busan, South Korea. It opened in 1976. A new international terminal opened on October 31, 2007. Gimhae International Airport is the main hub for Air Busan. Runway 18L/36R is used for military purposes only for Gimhae Air Base, but due to increasing traffic, there are plans to open the runway for airliners. In 2016, 14,900,815 passengers used the airport.
Gimpo International Airport Gimpo International Airport (Korean: 김포국제공항 ] ), commonly known as Gimpo Airport (IATA: GMP, ICAO: RKSS) (formerly and originally Kimpo International Airport), is located in the far western end of Seoul, some 15 km 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 in 2001. In 2015, 23,163,778 passengers used the airport, making it the third largest airport in Korea, as it has been surpassed by Jeju International Airport.