During a flight, who has final authority over the operation of the aircraft?

The pilot-in-command holds final authority over the operation of the aircraft during a flight. This responsibility is established by aviation regulations, which designate the pilot-in-command as the individual with ultimate decision-making authority related to the aircraft's operation, safety, and compliance with regulations. This role includes making critical decisions regarding flight maneuvers, navigational challenges, and responding to emergencies, ensuring the safety of the crew, passengers, and the aircraft itself.

While the flight crew may work together and provide input, the airline company may have policies and procedures in place, and air traffic controllers offer guidance and instructions, none of these parties have the final say in the operation of the aircraft. The pilot-in-command must weigh all information and advice provided by others, but the authority and accountability ultimately rest with that individual, reinforcing the importance of pilot decision-making skills and judgment in aviation.