What is the term used for the cruise portion of the flight profile?

The cruise portion of a flight profile refers to the phase where the aircraft maintains a steady altitude and speed after reaching its cruising altitude and before beginning its descent. This phase is characterized by consistent flight parameters, allowing the aircraft to cover long distances efficiently with minimal fuel consumption. During the cruise phase, the aircraft is typically flying at a high altitude to reduce drag and maximize fuel efficiency, making it a crucial part of long-distance flight operations. This phase is essential for optimizing travel time and fuel usage, distinguishing it clearly from other phases such as ascent, descent, or taxiing, which involve different flight dynamics and operational requirements.