What is the title of the in-flight supervisor or manager?

The title of the in-flight supervisor or manager is often referred to as 'Purser.' This role is essential in the cabin crew hierarchy, where the Purser is responsible for the overall management of the cabin crew during a flight. They act as the primary point of communication between the cabin crew and the cockpit, ensuring that safety protocols are adhered to and that passengers receive high-quality service. The Purser leads the team in executing service plans, managing any in-flight issues, and addressing passengers’ needs, thus playing a crucial role in ensuring both safety and passenger satisfaction.

The other title options such as 'Baggage' and 'Carrier' do not relate to in-flight management roles, as they are more associated with ground operations or logistics. 'Cabin Crew' refers to all personnel working in the passenger cabin but does not specify the leadership role that the Purser holds within that team.