A pilot’s discretion descent issued by ATC allows you to remain at cruise altitude for as long as possible. In this article, I explain how ATC determines when it is permissible to give a pilot’s discretion descent and why it is such a good deal for you.
I also cover variations on ATC’s descent clearance and what drives those variations.
Of course, pilot’s discretion descents are just one type of altitude clearance ATC may issue. There are dozens of others. They are all fully covered in my course Clearance Magic. This online program is a complete hands-on course in copying all types of clearances, including altitude clearances.