Yes, you can become cabin crew if you are "underweight," but you must still meet the physical strength and stamina requirements of the role. In 2026, most airlines have moved away from strict weight-to-height charts in favor of a Body Mass Index (BMI) range, typically between 18.5 and 24.9. If your BMI is slightly below 18.5, you aren't automatically disqualified, but you must demonstrate that you have the functional fitness to perform safety duties. This includes the ability to open heavy aircraft doors (which can weigh up to 60 lbs), lift 35-lb suitcases into overhead bins, and possess the cardiovascular endurance to work 12-hour shifts at high altitudes. Airlines like Emirates and Qatar are known for their high grooming standards, but they prioritize a "healthy and proportional" appearance over a specific number on the scale. If a candidate appears "unhealthily thin" or lacks the physical strength to assist passengers in an emergency, they may be asked to gain weight or build muscle before completing the training program.