This note is the 13th installment in the structural analysis series of the Public Asset Utilization Research Laboratory (ISVD-LAB-005). It analyzes the revenue structure of national-government airport concessions that have progressed since 2016, clarifies the scale conditions under which financial viability is achievable, and maps the structural differences between airports where viability holds and those where it does not.
What Is Happening
Japan has 98 airports nationwide. Of these, 26 are "national-government-managed airports" under the Ministry of Land, Infrastructure, Transport and Tourism (MLIT). MLIT has promoted private-sector entry (concession arrangements) at national-government airports since 2013. Beginning with Sendai Airport in 2016, concessions were subsequently established at Takamatsu, Fukuoka, Naha, and the seven-airport Hokkaido group.
However, the number of airports for which concessions have been realized stands at only 12. That represents 12% of Japan's 98 airports in total, and even among the 26 national-government airports alone, 46% remain under direct national or municipal operation.
Why do some airports achieve financial viability while others do not? Disaggregating the three components of the revenue structure brings the dividing line into focus.
Background and Context
Three Revenue Streams of Airports
Airport revenue divides broadly into three streams.
First stream: aviation revenue. This includes landing fees, parking fees, and navigation aid facility charges levied on aircraft. Revenue grows in proportion to passenger volume; as low-cost carrier (LCC) services expand and push passenger numbers higher, landing-fee income rises accordingly.
Second stream: non-aviation revenue. This encompasses commercial revenue generated within the terminal—duty-free shops, food and beverage outlets, parking facilities, and advertising. The larger the share of international passengers, who tend to spend more per person (spend-per-pax), the greater this revenue stream becomes.
Third stream: public subsidies. These are public funds that offset operating losses, such as subsidies for remote-island air routes and regional aviation support. At small regional airports where the first and second streams generate limited income, operations may be unsustainable without the third stream.
In a concession arrangement, private operators can recover their investment essentially from the first and second streams. Airports that depend on the third stream offer little room for private-sector profitability.
The Viability Threshold
Airport-by-airport financial data indicate that concessions tend to be viable at airports handling roughly 2 million or more annual passengers, while airports handling fewer than 1 million passengers leave little margin for private profitability.
The 2 million annual-passenger mark serves as a rough benchmark for generating enough non-aviation revenue—from duty-free shops, food and beverage, and parking—to cover capital renewal costs and financing expenses. Below this threshold, it becomes difficult for the private sector to achieve profitability on its own, and some combination with public subsidy becomes necessary.
Reading the Structure
Common Structure of Established Cases
The 12 airports where concessions have been established share three characteristics.
First, passenger volume. Sendai (over 4 million), Takamatsu (over 3.3 million), Fukuoka (over 24 million), and the seven Hokkaido airports (over 20 million centered on New Chitose) all exceed a certain annual-passenger threshold.
Second, combined landing fees and non-aviation revenue that exceeds renewal costs. Bidders emerge only when the projected cash flows over the concession term (typically 20–30 years) make private investment recovery feasible.
Third, government and municipal support schemes. At Sendai Airport, Miyagi Prefecture assumed responsibility for surrounding infrastructure improvements, creating a framework that reduced the private operator's airport-management burden. The seven-Hokkaido-airport model bundled multiple airports into a single package, pairing lower-traffic airports (Memanbetsu, Kushiro, etc.) with the high-performing New Chitose.
The Structure of Airports Where Concessions Do Not Materialize
At regional airports with low passenger volumes, the combined first- and second-stream revenue falls below facility maintenance costs. Because private operators cannot achieve profitability, no bidders emerge for concession arrangements.
Aviation safety facility maintenance costs carry a fixed-cost component that is independent of airport scale. The costs of maintaining runways, taxiways, and landing-aid equipment do not scale proportionally with passenger volume; as a result, the per-passenger fixed-cost burden grows heavier the fewer passengers an airport handles.
| Airport type | Annual passenger volume (approximate) | Concession viability | Primary revenue sources |
|---|---|---|---|
| Large-scale airport | More than 5 million | Likely viable | Non-aviation (duty-free, commercial) + landing fees |
| Mid-scale airport | 1–5 million | Conditional | Primarily landing fees; limited non-aviation revenue |
| Small regional airport | Under 1 million | Difficult on a standalone basis | Landing fees + public subsidies |
The Significance of the Seven-Hokkaido-Airport Model
Bundling the seven Hokkaido airports into a single package embodies a design philosophy of "combining financially viable airports with financially unviable ones." The concession contract framework was structured so that New Chitose's high returns cross-subsidize the deficits of smaller regional airports such as Memanbetsu, Kushiro, and Obihiro.
This approach mirrors the Miyagi Prefecture model for water utility concessions, which integrated three separate businesses—drinking water, industrial water, and sewage—into a single arrangement. Packaging otherwise unviable assets together improves the feasibility of private investment recovery.
"Package design in infrastructure concessions" is a design principle applicable to future arrangements covering regional airports, regional railways, and regional water utilities alike. Before concluding that a concession is impossible due to insufficient profitability, it is worth examining what combination of assets would make viability achievable.
What seven years of airport concessions have demonstrated is that viability is not determined by scale alone. The three variables of scale, package design, and public support scheme—and how they are structured together—determine whether a concession arrangement can be realized.
References
Leveraging Private Capabilities in the Management of National-Government Airports (Airport Concessions) — MLIT Civil Aviation Bureau. Ministry of Land, Infrastructure, Transport and Tourism
Airport-by-Airport Financial Data (National-Government Airports) — MLIT Civil Aviation Bureau. Ministry of Land, Infrastructure, Transport and Tourism
Overview of Aviation Safety Facility Operations — MLIT Civil Aviation Bureau. Ministry of Land, Infrastructure, Transport and Tourism
PPP/PFI Promotion Action Plan (FY2025 Revised Edition) — Cabinet Office. Cabinet Office of Japan