What defines a charter flight?

A charter flight is defined as a plane rented for specific travel needs, which allows for greater flexibility compared to scheduled flights. Charter flights can be booked for a variety of purposes, such as corporate travel, group outings, or special events. The key aspect of a charter flight is that it is not available for the general public and is instead arranged by individuals or organizations for their own specific requirements.

In contrast, the other options do not accurately capture the essence of a charter flight. For instance, a flight with government approval for any destination does not reflect the nature of charter services, which are typically private arrangements rather than government-regulated flights. Additionally, while an individual passenger can book a charter flight, it is not limited to individual bookings; groups can charter flights as well. Finally, a flight that is regularly scheduled describes commercial flights that operate on a set timetable, which is the opposite of the ad hoc nature of a charter flight. Thus, the defining characteristic of a charter flight is indeed its basis in being rented for specific travel needs.