What key detail does a flight plan outline?

A flight plan is a crucial document that outlines the pilot’s intended route and departure point for the flight. It serves several purposes, including providing air traffic control with necessary information for managing airspace efficiently and ensuring the safety of the flight.

The flight plan detail primarily includes the departure airport, the route that the aircraft will take to reach its destination, any waypoints or airways to be used, the intended cruising altitude, and arrival airport. This information is vital for the safe navigation and coordination of the flight, allowing air traffic control to monitor the aircraft’s progress and manage air traffic.

While other options, such as weather forecasts, cargo weight limits, and landing procedures, may be important considerations for a flight, these details are not the primary focus of the flight plan itself. The flight plan is fundamentally about the 'who, what, where, and when' of the flight, making the intention to communicate the pilot’s route and departure point the key detail it outlines.