Jin Air Co. Ltd (Hangul: 진에어; RR: Jin E-eo), formerly Air Korea is a low cost airline originating from South Korea. It is a full subsidiary of Korean Air. Jin Air began operations in July 2008 with routes to regional destinations in Korea. In October 2009, Jin Air began flights to Macau, Guam and Bangkok. The name "Jin Air" was officially announced on June 15, 2008 at an opening ceremony in Seoul. It has its headquarters in Deungchon-dong, Gangseo-gu, Seoul.
Jin Air started its operation with 4 Boeing 737-800s from Korean Air, seating 189 passengers of single class (as of January 2013). It planned to expand its fleet to 2 A300-600Rs by April 2009, but this was canceled.