To obtain a Private Pilot License (PPL), you need at least 40 flight hours. For a Commercial Pilot License (CPL), you must complete around 200 flight hours. To obtain an Airline Transport Pilot License (ATPL), a minimum of 1,500 flight hours is required. These hours are accumulated through flight training and experience. It's essential to complete these hours under the guidance of an authorized instructor to be eligible for the exam and licensure.