Eastar Jet
 Eastar Jet (ESR) (Hangul: 이스타 항공; RR: Iseuta Hanggong) is a low-cost airline with its headquarters in Banghwa-dong Gangseo-gu Seoul South Korea. On January 7 2009 Eastar Jet made its maiden flight from Gimpo International Airport to Jeju International Airport. Now the airline operates a scheduled passenger network to 14 destinations in eight countries. Its main base is Gimpo International Airport with a hub at Jeju International Airport.