Some airlines are more formal than others, but regardless of their level of formality, traditional business attire is preferred - which usually includes a suit or blazer paired with a skirt or slacks.

The flight attendant dress code in 2026 is a blend of traditional professionalism and modern inclusivity, though it remains strictly regulated to ensure a cohesive brand image and safety. Airlines typically require a complete uniform consisting of a tailored blazer, vest, or dress, often paired with a branded scarf, tie, or belt. Footwear must be professional (typically black leather) and polished; while "high heels" were once the standard for female attendants, most major carriers now allow "flats" or sensible loafers for safety during the flight. Grooming standards are equally rigorous: hair must be neatly styled (often pulled back if it reaches the shoulder), and makeup, if worn, should be "natural" and professional. In a significant shift over the last few years, many airlines like United and Virgin Atlantic now allow visible tattoos (provided they are not offensive) and more gender-neutral uniform options, such as trousers for all genders. Despite these modernizations, the dress code's primary purpose remains functional—ensuring that the crew is easily identifiable as authority figures in an emergency and that their attire does not interfere with the operation of safety equipment like life vests or oxygen masks.