What is the correct IATA code for Mexico City?

The correct IATA code for Mexico City is MEX. IATA codes are three-letter abbreviations assigned to airports around the world to simplify travel and enhance communication among airlines, travel agents, and passengers. MEX specifically stands for the Mexico City International Airport, also known as Aeropuerto Internacional Benito Juárez, which is the primary airport serving Mexico City and is one of the busiest airports in Latin America. This code is commonly recognized in ticketing, boarding passes, and airline schedules when referring to flights in and out of Mexico City.

The other options represent different airports: MBJ is the code for Sangster International Airport in Montego Bay, Jamaica, LIM refers to Jorge Chávez International Airport in Lima, Peru, and HKG is the code for Hong Kong International Airport. Each of these codes corresponds to a different location, which is why they do not apply to Mexico City.