Airline companies tend to offer higher salaries to aeronautical diploma holders, particularly in roles related to maintenance, repair, and engineering. These positions are crucial for ensuring the safety and efficiency of airline operations, so companies are willing to pay competitive salaries to attract qualified technicians. The specific salary may vary based on the airline’s scale, the employee’s experience, and the location, but working for a reputable airline generally provides better financial rewards and benefits, along with opportunities for career advancement.