The maximum certified carrying capacity is 853 passengers in an all-economy-class layout, Airbus lists the typical three-class layout as accommodating 525 passengers, with 10 first, 76 business, and 439 economy class seats.

The passenger capacity of an Airbus A380, the world’s largest passenger airliner, varies significantly based on the internal seating configuration chosen by the airline. In a typical three-class layout (First, Business, and Economy), the A380 usually carries between 450 and 550 passengers. For example, British Airways configures theirs for 469 passengers, while Singapore Airlines varies between 379 and 471. However, Emirates—the largest operator of the A380—utilizes several different configurations. Their high-density two-class version (Business and Economy) can hold a massive 615 passengers, which is currently the highest capacity in commercial operation. Theoretically, if an airline were to configure the A380 in an all-economy "max density" layout across its two full decks, it could legally carry up to 853 passengers, though no airline has ever actually implemented such a plan because it would lack the premium cabins that make the A380 profitable. The sheer size of the plane requires massive infrastructure at airports, including double-decker jet bridges to handle the loading and unloading of such a large number of people efficiently.