The Truth About Airport Value: Decoding Beyond Passenger Flow
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On August 13, 2026, Incheon International Airport Corporation, citing preliminary data from the Airports Council International (ACI), announced a milestone: In the first half of this year, Incheon International Airport handled 38.4 million international passengers, surpassing London Heathrow Airport (37.79 million) and Singapore Changi Airport (34.53 million) for the first time, successfully becoming the world's top international passenger airport. However, behind this impressive achievement lies a more intriguing picture. While Heathrow Airport achieved a record high of nearly 38 million passengers in the first half of the year, its annual financial outlook was forced to be lowered, with expected profits shrinking by £150 million. On one hand, there is the glorious achievement of top-ranking passenger volume; on the other hand, there is the shrinking profit despite record-breaking passenger flow-this stark contrast reveals a long-overlooked industry truth: the rankings of global benchmark airports are being reshuffled, and what truly determines their core value is never merely the number of passengers.
For a long time, passenger volume has been considered the "golden yardstick" for measuring airport value, but this yardstick often fails to capture the complexities of the business world. Among the world's top ten airports, we see both highly profitable commercial hubs with nearly 100 million passengers annually and public facilities reliant on government subsidies. Despite comparable passenger volumes, their underlying commercial value differs drastically. In recent years, the international aviation industry has gradually reached a consensus: assessing an airport's true strength requires examining at least three key dimensions-commercial revenue per passenger, aeronautical revenue per flight, and true profit after excluding low-margin operations. The first two answer "where does revenue come from," while the last reveals "the quality of profit."
This article will select six global benchmark airports-Singapore Changi Airport, Dubai International (DXB), London Heathrow, Amsterdam Schiphol, Seoul Incheon Airport, and Doha Hamad Airport-as samples to deeply analyze how these three dimensions reshape the true value of an airport.
I. Passenger Productivity: Transit Dividends and the Experience Economy Determine the Upper Limit of Commercial Value per Capita
Transforming passengers from mere "headcount" into tangible "spending power" relies not on the absolute number of passengers, but on a precise customer base structure, ample stay time, and innovative business models. Transit passengers, due to their long waiting times and diverse consumption scenarios, are the core source of non-aeronautical revenue. Therefore, the proportion of transit passengers directly determines the ceiling of a hub airport's consumption potential.
Data shows that in 2025, the proportion of transit passengers at six benchmark airports exhibited significant differences: Hamad International Airport in Doha topped the list with 74% (OAG 2025 statistics); Dubai International Airport was approximately 45%; Amsterdam Schiphol Airport was approximately 36.6%; Singapore Changi Airport was approximately 30%; Seoul Incheon Airport was approximately 22%-24%; and London Heathrow Airport had the lowest, at only about 15.5%. This huge difference in transit passenger proportions essentially reflects the strategic differences in the hub positioning of each airport.
Per capita commercial revenue is the most direct indicator to verify this logic. Taking 2025 data as an example, Incheon Airport's retail sales reached US$2.32 billion, translating to an average spending of approximately US$31.50 per person based on 73.6 million international passengers. Dubai Duty Free's sales reached AED 8.68 billion (equivalent to US$2.38 billion), translating to an average spending of approximately US$24.90 per person. However, the business logic of benchmark airports has shifted entirely from the traditional "price-driven" to "experience-driven."
Singapore Changi Airport has explicitly stated that the simple advantage of duty-free pricing is no longer sufficient to sustainably drive consumption. Instead, it has built a complete business loop through the iShopChangi pre-order platform, exclusive launch events for Changi 1 brands, the Changi Rewards membership system, and the Changi Pay payment system. More notably, the "Jewel Changi" project has successfully upgraded the airport from a transportation hub into a highly sought-after "lifestyle destination." Hamad International Airport in Doha has successfully pursued an exceptional retail strategy, boasting 40,000 square meters of retail space and over 200 stores, complemented by a 6,000-square-meter indoor tropical garden, ORCHARD. It has won the Skytrax "Best Airport Shopping in the World" award for three consecutive years.
However, high throughput does not necessarily equate to high conversion rates. Incheon Airport's experience provides a stark reminder: despite a surge in foreign consumer numbers from 660,000 in 2021 to 6.02 million in 2023, per capita spending declined. In May 2025, its per capita spending decreased by 13.8% year-on-year, with the decline in spending by Chinese tourists being a major contributing factor. This demonstrates that when customer demographics undergo significant changes, mere expansion cannot support per capita income growth; dynamically adjusting the merchant mix and business format is the key to overcoming these challenges. Amsterdam Schiphol Airport offers an excellent example in this regard. Its Lounge 1 waiting area has expanded from 19,000 square meters to 24,000 square meters, introducing 23 new business formats and a 1,500-square-meter Today Duty Free flagship store, where perfumes and wines are priced at an average of 25% lower than retail prices in the Netherlands. More importantly, its partnership model has been innovated-through a joint venture with the Lagardère Group (Schiphol holds a 30% stake), moving from simple franchising to deep commercial integration, ultimately achieving an operating profit of €278 million for the commercial segment by 2025.
II. Flight Revenue: Wide-Body Aircraft Effect and Regulatory Framework Support Aviation Revenue
If each passenger represents the potential of consumption, then each flight determines the cornerstone of aviation revenue. The number of passengers carried per flight is the basic multiplier of aviation revenue: Dubai and Hamad mainly use long-haul wide-body aircraft, with single-flight capacity reaching 214 and 192 passengers respectively; Heathrow, Incheon, and Changi Airport maintain between 175 and 187 passengers. A higher proportion of wide-body aircraft means a stronger carrying capacity per flight. For example, Heathrow Airport, constrained by capacity, implements a long-haul wide-body priority strategy, resulting in approximately 221 seats per flight and a load factor exceeding 80%, thus achieving a simultaneous increase in aeronautical revenue and passenger spending potential.
The per-flight fee level directly reflects the airport's bargaining power and route value. Data from 2025 shows: London Heathrow Airport: aeronautical revenue of £2.245 billion, corresponding to 475,600 flights, with per-flight revenue of approximately £4,720; Amsterdam Schiphol Airport: aeronautical revenue of €1.888 billion, corresponding to 477,600 flights, with per-flight revenue of approximately €3,953; Seoul Incheon Airport: aeronautical revenue accounts for 36% of total revenue, with an estimated per-flight revenue of approximately $1,700.
The significantly higher per-flight revenue at Heathrow and Schiphol compared to Incheon is mainly attributed to two reasons: 1. Regulatory framework protection and premium pricing: European airport fees are protected by a strict regulatory framework. In April 2025, Schiphol Airport's average airfares increased by 41.4%, propelling it into the top three in Europe. 2. Structural premiums for long-haul routes: Heathrow Airport's revenue per passenger reached £26.57, exceeding the regulatory cap of £25.24 to £25.93. This difference stems from the higher-fee privileges associated with long-haul routes. Furthermore, Schiphol Airport innovatively implemented a differentiated noise pricing mechanism: low-noise aircraft enjoy lower fees, while high-noise aircraft and night flights face higher fares. This strategy, using price levers to guide airline operations, cleverly integrates environmental goals.
Airline structure forms the cornerstone of this analytical dimension. Looking at the world's six benchmark airports, a significant characteristic of "single-airline dominance" is prevalent: at London Heathrow, British Airways accounts for over 50.8% of takeoff and landing slots; at Dubai International Airport, Emirates controls 51% of the market share and exclusively enjoys Terminal 3 resources; at Hamad International Airport, Qatar Airways handles over 80% of the capacity; and at Singapore Changi Airport, more than half of the capacity comes from the Singapore Airlines Group. While this highly concentrated structure raises concerns about the adequacy of market competition, it possesses irreplaceable advantages in ensuring hub operational efficiency and optimizing flight connections. Meanwhile, Incheon Airport is undergoing profound structural changes-with Korean Air completing its acquisition of Asiana Airlines in December 2024, the merged Korean Air Group will account for approximately 43% of its international capacity, while South Korean domestic airlines will collectively hold a 68% share. This "super carrier" structure, while beneficial for strengthening transit connections and network synergy, also presents new challenges to the diversification of the airport's airline structure.
III. Profit Quality: High Non-Aeronautical Revenue Does Not Equate to High Profit Margins
The first two dimensions primarily analyze the composition of revenue sources, while "profit quality" aims to reveal the true value of profits. Its core logic lies in determining how much of the total revenue originates from high-margin core businesses, and how much is inflated by low-margin businesses such as construction services and fuel resale. According to the FY2024/25 annual report, Changi Airport's revenue structure is as follows: aeronautical airport service fees account for 49.3%, commercial concessions and rental income account for 38.2%, and other airport services account for 9.4%. If low-margin items such as construction services and fuel resale are excluded, its total non-aeronautical revenue accounts for 47.6%; if a third-party calculation method including all commercial revenue from Jewel Changi Airport is used, this proportion is approximately 50.7%. Similarly, Heathrow Airport does not engage in fuel resale or engineering contracting businesses, and all its revenue has a high organic profit margin. In contrast, some airports in emerging markets, while inflating their revenue figures on paper by incorporating airport engineering contracting and aviation fuel purchasing and resale businesses, have diluted overall profit quality due to extremely low profit margins. Therefore, divesting low-margin businesses and focusing on high-value-added areas is the right way to improve profit quality.
However, the misconception that "a high proportion of non-aviation revenue equates to a high profit margin" is easily overlooked. Financial reports for 2025 show that Heathrow Airport topped the list with an adjusted EBITDA margin of 56.1%, but its non-aeronautical revenue accounted for only 38.0% of its total revenue. Changi Airport, with non-aeronautical revenue accounting for 47.6%, had an EBITDA margin between 43.6% and 47.7% (44.2% in FY2023/24, rising to 47.7% in FY2024/25, and projected to fall back to 43.6% in FY2025/26). Schiphol Airport's 2025 EBITDA margin was 40.6%, with non-aeronautical revenue accounting for only 31.6%. While Incheon Airport boasted the highest non-aeronautical revenue share at approximately 64%, its EBITDA margin was only in the industry-estimated range of 35%-40% due to increased depreciation costs from its fourth-phase expansion.
This demonstrates that assessing profit quality cannot solely rely on the scale of non-aeronautical revenue; it is crucial to examine the inherent quality of the non-aeronautical business itself. Heathrow Airport, through its high-commission concession model, has achieved risk-sharing and profit-sharing between the airport and operators. By leveraging improved security efficiency to extend passenger dwell time, it has successfully translated operational efficiency into commercial revenue. Schiphol Airport's commercial segment boasts an implied profit margin of 41.5%, far exceeding the aviation segment's 21.8%, nearly double that of its aviation business. This is the fundamental driving force behind global airports' focus on non-aviation businesses. Schiphol's relatively low non-aviation revenue share is due to the squeeze from high aviation fees under the European regulatory framework, a structural difference stemming from the institutional environment.
IV. Implications for Domestic Airports
The practices of these six benchmark airports collectively point to a clear direction: airport value assessment systems should shift from simple "traffic management" to in-depth "value management," aiming to maximize the commercial return for each passenger, each flight, and each revenue stream. These three dimensions are not isolated but closely coupled and mutually reinforcing. A high proportion of international transit and a high consumption conversion rate jointly boost the proportion of non-aeronautical revenue and EBITDA margin; long-haul wide-body routes and high passenger volume per flight simultaneously increase aeronautical revenue and consumption potential; and healthy profit quality provides solid support for infrastructure investment and business innovation.
For domestic airports currently undergoing a critical transition from scale expansion to quality improvement, this evaluation paradigm is highly instructive: decision-makers should no longer blindly pursue the single indicator of passenger throughput, but should instead use "the commercial value created by each passenger," "the comprehensive contribution brought by each flight," and "the health of profit quality" as the core benchmarks for measuring the true commercial value of an airport.
