The best subjects to study for a cabin crew career include communication skills, hospitality management, and travel & tourism, as they help in understanding customer service and airline operations. Foreign languages are valuable for working with international passengers, while first aid and safety training are essential for emergencies. Grooming and personal presentation courses help maintain the professional image required by airlines. Additionally, psychology and interpersonal skills can improve handling diverse situations and passenger behavior. A mix of these subjects prepares candidates for a successful career as cabin crew.