Air Busan Restores Kumamoto–Cheongju Connectivity With New Daily Route Launch

Written By: Samadrita Mukherjee

Samadrita Mukherjee

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July 6, 2026 07:20 GMT+5:30

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Air Busan has confirmed the launch of its Air Busan Kumamoto Cheongju route launch, marking the return of direct air connectivity between Kumamoto in Japan and Cheongju in South Korea from September 23. The new service ends a three-year suspension and restores a key regional aviation link in East Asia.

According to airline schedule information, the route will operate daily using Airbus A320 aircraft. While the schedule is currently marked as provisional, the reinstatement reflects growing demand for short-haul international travel between Japan’s Kyushu region and South Korea’s central aviation network.

The development is part of a broader recovery trend in East Asian aviation, where airlines are steadily rebuilding pre-pandemic regional routes and expanding frequency on high-demand corridors.

Daily Flights Reinforce Regional Japan–South Korea Connectivity

The reinstated Kumamoto–Cheongju service will operate seven days a week, offering consistent daily connectivity for passengers travelling between southwestern Japan and central South Korea. The route is expected to support both tourism recovery and renewed business travel demand across the region.

Cheongju serves as an important domestic and international gateway in South Korea, while Kumamoto is a key hub in Japan’s Kyushu region, known for tourism, manufacturing, and cultural heritage.

Key operational details of the Air Busan route

• RF9362: Cheongju (CJJ) → Kumamoto (KMJ), 16:00–17:20
• RF9361: Kumamoto (KMJ) → Cheongju (CJJ), 18:20–19:45
• Daily operations (7 flights per week)
• Aircraft type: Airbus A320
• Schedule currently provisional and subject to operational updates

The timing of the flights is designed to support short-stay travel, allowing same-day return journeys between the two cities. Air Busan has indicated that the schedule may be adjusted depending on seasonal demand, regulatory conditions, and operational requirements.

Route Resumption After Three-Year Suspension

The return of this route comes after approximately three years of suspension, during which direct connectivity between Kumamoto and Cheongju was unavailable. The resumption signals improved bilateral air travel conditions and increasing demand for regional connectivity in East Asia.

Short-haul international routes between Japan and South Korea have historically been among the busiest in the region, driven by tourism, cultural exchange, and business travel.

Factors driving route reinstatement

• Recovery in Japan–South Korea travel demand post-pandemic
• Strong tourism flows between Kyushu and South Korean cities
• Growing demand for secondary-city international connections
• Airline network restructuring and capacity optimisation
• Restoration of previously suspended regional routes

The reinstatement reflects confidence in sustained passenger demand across regional East Asian aviation markets.

Strategic Role of Cheongju and Kumamoto in Regional Aviation

Cheongju International Airport serves as a key alternative gateway to Seoul’s major airports, providing access to central South Korea. Its growing role in regional aviation has made it an attractive hub for short-haul international services.

Kumamoto Airport, meanwhile, is an important entry point to Japan’s Kyushu region, supporting both domestic tourism and international arrivals.

Why the Kumamoto–Cheongju route is strategically important

• Connects two secondary but high-potential aviation markets
• Supports decentralised travel beyond capital cities
• Enhances tourism access to Kyushu and central Korea
• Provides efficient regional connectivity without major hubs
• Strengthens low-cost carrier network development in Asia

The route is expected to benefit passengers seeking direct travel options without transiting through larger airports such as Seoul Incheon or Fukuoka.

Airbus A320 Deployment Supports Efficient Daily Operations

Air Busan will operate the route using the Airbus A320, a narrow-body aircraft widely used across regional and international short-haul markets. The aircraft is well-suited for daily frequency operations due to its efficiency and operational flexibility.

Operational advantages of Airbus A320 on this route

• Optimised for short-haul international routes
• Efficient fuel consumption for daily operations
• Suitable passenger capacity for regional demand
• Reliable scheduling for high-frequency service
• Strong performance across East Asian air corridors

This aircraft choice supports Air Busan’s strategy of maintaining cost-effective regional connectivity while expanding its international footprint.

Passenger Impact and Regional Travel Benefits

The reinstated service is expected to significantly improve travel convenience for passengers in both Japan and South Korea. Daily operations allow flexible travel planning and easier access for short-term visits, tourism, and business trips.

Expected passenger benefits

• Direct daily flights between Kumamoto and Cheongju
• Reduced travel time compared to connecting itineraries
• Increased flexibility for short-stay travel
• Improved access for tourism and business exchange
• Strengthened regional mobility in East Asia

The route is also expected to support local tourism industries, particularly in Kumamoto, which continues to recover inbound visitor numbers.

Wider East Asia Aviation Recovery Trend

The resumption of the Kumamoto–Cheongju route reflects a broader recovery in East Asian aviation, where short-haul international routes are experiencing strong demand resurgence. Airlines across Japan and South Korea are actively restoring suspended services and increasing frequencies on key regional corridors.

Secondary city routes are becoming increasingly important as airlines diversify beyond major metropolitan hubs. The Air Busan launch aligns with this trend, highlighting the growing importance of regional aviation connectivity in post-pandemic network rebuilding strategies.

Air Busan’s Kumamoto–Cheongju route is scheduled to commence operations on September 23, with daily Airbus A320 flights. The airline has confirmed that the schedule remains provisional and may be adjusted depending on operational and seasonal factors. The route’s reinstatement marks a key step in restoring regional connectivity between Japan and South Korea after a three-year suspension period.