Korean Air has formally confirmed via regulatory filing that it will merge its three low-cost carrier subsidiaries—Jin Air, Air Busan, and Air Seoul—into a single entity by the first quarter of 2027. This consolidation eliminates internal competition, optimizes route networks, and streamlines IT infrastructure and ground operations to create a unified budget arm capable of competing with Jeju Air and Eastar Jet. The integration follows the December 17, 2026 launch of the merged Korean Air-Asiana flag carrier, marking the next phase of Hanjin Group’s restructuring. While the new brand name remains unannounced, industry consensus indicates the merged LCC will operate under the Jin Air banner, absorbing Air Busan and Air Seoul assets and retiring their distinct identities.