Basic Airline Terminology Practice Test

In airline operations, codes are used for quick status communication. The code CX is used to signal a flight cancellation, meaning the planned service will not operate as scheduled and will need actions like rebooking passengers and rearranging crew and equipment. This distinguishes it from boarding (the process of passengers entering the aircraft), delays (the flight is late but still intended to fly), or deplaning (passengers exiting after arrival). The cancellation status is an absolute stop to the flight’s operation, which is why CX is the best fit.