In 2026, there is no single "universal" height limit, but "too short" is generally defined by your ability to reach all flight controls and maintain full visibility. Most major airlines, such as Delta or British Airways, historically looked for a minimum height of around 5 feet 2 inches (157 cm), but many have moved toward a "functional reach" test instead. This involves sitting in a cockpit simulator to ensure you can fully depress the rudder pedals while simultaneously reaching the overhead panels and seeing over the glare shield. If you are under 5 feet, you may struggle with the leverage required for manual flight controls in older aircraft models. However, modern "fly-by-wire" systems and adjustable seats make aviation more accessible than ever. It is a peer-to-peer tip to check specific airline requirements, as some still maintain a minimum "arm reach" (often around 127 cm) to ensure safety during emergency procedures where rapid, unobstructed access to every switch and lever is a critical requirement for flight certification.