A major airport is a regulated monopoly gateway with a shopping mall attached: two tills, the aeronautical and the commercial, on one captive-traffic site. Choose a real airport below and walk through the airfield, the business model and a working returns model.
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Drag the sliders to see what flows through the airport, and which till it earns from.
Every airport earns from two tills. The aeronautical till charges airlines to land, park and process passengers; because it is a near-monopoly it is almost always regulated, and lower-margin. The commercial till (retail, food & beverage, car parking, property and advertising) is largely unregulated and far higher-margin. Lifting commercial income per passenger is the core value-creation lever; the regulatory regime then decides how much of it the owner keeps versus hands back to the airlines.
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See also the standalone live airport simulation, a generic airport with animated traffic and the same two-till revenue → EBITDA → returns build.