I recently heard someone mention empty leg flights and realised that I did not really understand how they work. I had always assumed that booking a private aircraft meant arranging a completely separate flight from the beginning, so the idea of using an already scheduled route was new to me. From what I understand, an empty leg can become available when an aircraft needs to travel to another location without passengers. That sounds interesting, especially for someone with flexible travel dates, but I imagine the available routes can be quite unpredictable. How do people usually find these opportunities and decide whether a particular route is suitable?