Jeju Air Co., Ltd. is the first and the largest South Korean low-cost airline. Named after Jeju Island, the airline is headquartered in Jeju City with its largest base at Jeju International Airport. It was a founding member of the Value Alliance. Aekyung Group is Jeju Air's largest shareholder, and Jeju Air is the largest shareholder in AK Holdings, the holding company of Aekyung Group. In 2024, it was reported that AK Holdings has injected over 600 billion won to Jeju Air in the previous four years. Jeju Air is the most profitable among AK Group's five subsidiaries. Jeju Air is the first Korean LCC to be publicly listed on the Korea Exchange. Wikipedia