Which term describes the portion of a flight segment from point A to point B?

The term that describes the portion of a flight from point A to point B is referred to as a "leg." In aviation terminology, a leg signifies the distance flown between two specific points during a journey, effectively representing one segment of a multi-part itinerary. Each leg is part of the overall travel route and can be made up of different segments.

This specific term helps in efficient communication among flight crew, air traffic control, and travelers, ensuring everyone understands exactly which part of the journey is being referenced. For example, during a connecting flight, each individual section or leg from departure to the next destination is distinct and important for scheduling and operational purposes.

While terms like "segment," "route," and "flight path" do relate to flight operations, they describe different concepts. A "segment" can refer to a part of a larger air route but does not specifically encapsulate the entire flight between two points as a "leg" does. A "route" refers more to the planned pathway or airways followed during the journey, and a "flight path" generally describes the actual trajectory of the aircraft as it flies.