Instrument Flight Rules (IFR) Practice Exam 2026 – The All-in-One Guide to Master Your IFR Certification!

When planning an IFR flight that involves multiple legs at varying altitudes, the initial altitude for the first leg is the most appropriate choice to file in your flight plan. This is because the filed flight plan should reflect the altitude you will be departing at for the first leg of your journey.

This means that upon takeoff, the aircraft will initially climb to this specified altitude unless otherwise directed by air traffic control. It establishes your starting point for the flight, from which any altitude changes can be issued during your route based on traffic, terrain, or other considerations.

Each subsequent leg's altitude changes can be discussed and coordinated with air traffic control as the flight progresses. By providing the initial altitude, ATC can manage your flight more efficiently and provide relevant instructions as needed.

The other options, such as the average, highest, or lowest planned altitudes, do not provide a clear starting altitude necessary for departure and climb. Instead, they could lead to confusion or a departure from standard procedures, compromising the flight's safety and planning accuracy.