Snacks, desserts, and drinks usually have some extra but, again, they do carry a finite amount. It really depends on the airline. For first and business, I've generally been given as much booze and snacks as I wanted, although the actual meals may be limited to how many they actually have left.

While not literally "all-you-can-eat" in a buffet sense, in 2026, many top-tier airlines offer "Dining on Demand," allowing Business Class passengers to eat whatever they want from the menu at any time. Airlines like Qatar Airways, Turkish Airlines, and Etihad are famous for this flexibility. Beyond the multi-course primary meals, there is usually an extensive "Anytime Snack" menu featuring hot sliders, noodles, or cheese boards. Flight attendants are generally happy to provide a second appetizer or dessert if extras are available after the initial service. However, the limit is usually the physical quantity of food loaded onto the aircraft; while you likely won't run the galley dry, the selection may diminish toward the end of a long-haul flight. For 2026 travelers, the goal isn't just quantity, but the ability to tailor your meal schedule to your own internal clock to minimize jet lag.