What does the term 'deadhead' refer to in the airline industry?

The term 'deadhead' in the airline industry refers to an employee flying without a paid ticket. This typically involves crew members who may need to travel to a different location to start their scheduled duties, such as pilots or flight attendants moving to the airport where they will be working on another flight. This practice is essential for airlines to reposition their crew efficiently without incurring additional costs associated with ticket sales.

It's important to understand how this term fits within the broader context of airline operations, as it highlights practices related to crew management and cost efficiency. In contrast, other terms provided in the options refer to different situations that do not align with the established meaning of 'deadheading' in the airline industry.