Aircrew, also called flight crew, are personnel who operate an aircraft while in flight. The composition of a flight's crew depends on the type of aircraft, plus the flight's duration and purpose.

In the aviation industry, the term "flight crew" specifically refers to the personnel responsible for the operation of the aircraft, primarily those on the flight deck (cockpit). This includes the Captain (the Pilot in Command) and the First Officer (co-pilot). On older or very long-haul aircraft, the flight crew may also include a Flight Engineer. It is a common misconception to group everyone on the plane under this term; the personnel responsible for passenger safety and service in the cabin are properly called the "Cabin Crew" or "Flight Attendants." Collectively, the flight crew and the cabin crew are known as the "Aircrew." Each role has a distinct hierarchy and regulatory requirements; for example, the "Lead Flight Attendant" is often called the Purser or In-flight Lead. In 2026, clear terminology remains crucial for communication during pre-flight briefings, where the Captain (flight crew) coordinates with the Purser (cabin crew) to ensure a safe and efficient journey.