South Korea’s low-cost aviation market is set for a major shake-up as Jin Air, Air Busan and Air Seoul prepare to merge into a single carrier under the Jin Air name. The three airlines (Jin Air, Air Busan, and Air Seoul) approved the merger agreement on August 21, with shareholder approval expected in December and regulatory procedures to follow.
The combined airline in South Korea is scheduled to begin operations on March 17, 2027, creating South Korea’s largest low-cost carrier by fleet size. The new Jin Air is expected to operate 58 aircraft, combining the three airlines’ fleets, routes and resources. The merger could give travelers access to a broader network, easier connections and eventually a unified loyalty program, although details regarding fares, schedules, existing bookings, credits and loyalty points have yet to be finalized.
Three Airlines, One Bigger Network in South Korea
The merger brings together three carriers with complementary networks and strong regional connections. Jin Air currently operates 47 international and 14 domestic routes, including key services linking Seoul with Jeju, Tokyo, Osaka and Bangkok. Air Busan operates 39 routes from its Busan hub, while Air Seoul maintains 10 routes from Incheon. By combining these networks and fleets, the new Jin Air is expected to offer travelers a wider range of destinations and more convenient connections while building greater competitiveness across Asia’s low-cost aviation market.
The combined carrier will also have greater operational scale, with 58 aircraft operating under one brand. Jin Air has said its goal is to establish the new airline as a leading low-cost carrier in Asia, while maintaining safety as a central priority throughout the transition. The integration will require the airlines to align their operations, systems and teams, but if completed, it could give the new Jin Air a stronger position in one of Asia’s most competitive aviation markets.
A Major Step After Korean Air And Asiana
The planned three-way merger is closely connected to the broader Korean Air-Asiana integration, which is scheduled for December 17, 2026. Jin Air is affiliated with Korean Air, while Air Busan and Air Seoul are part of the Asiana side of the group, making the consolidation of their low-cost operations a natural next step after the parent companies come together. Instead of continuing as three separate budget carriers, the airlines will be brought under the Jin Air brand to create a larger and more unified operation.
Under the agreement, Jin Air will absorb the assets, liabilities, employees and legal status of Air Busan and Air Seoul. The move is expected to simplify the group’s low-cost airline structure while combining the three carriers’ existing strengths. For the wider aviation industry, the merger represents another major step in South Korea’s airline consolidation and could give the new Jin Air greater scale and a stronger platform for expansion across the Asian market.
The Regulatory Hurdle Comes First
Before the new airline can take off, it must secure a single Air Operator Certificate (AOC). Jin Air plans to integrate Air Busan and Air Seoul into its existing certificate in stages, subject to a safety inspection by South Korea’s Ministry of Land, Infrastructure and Transport. Meanwhile, the airlines are working behind the scenes to align operational manuals, integrate teams and train pilots and cabin crew. For passengers, the biggest benefits simpler booking, wider connectivity and one loyalty program are expected to become clearer closer to the March 2027 launch.
If approvals and preparations remain on schedule, March 17, 2027, will mark the beginning of a new era for South Korea’s budget aviation market, with three airlines becoming one and Jin Air emerging as the country’s largest low-cost carrier.
