What city is represented by the airport code GRU?

The airport code GRU represents São Paulo, Brazil. This code is derived from the name of the city's main international airport, São Paulo/Guarulhos–Governador André Franco Montoro International Airport, which is often abbreviated as Guarulhos Airport, or simply GRU. Understanding airport codes is essential for navigating international travel, as they provide a standardized system for identifying locations around the world. Codes like GRU help ensure clarity and prevent confusion among travelers and airline crews, especially in a heavily trafficked aviation hub like São Paulo.

The other choices represent cities that have their own distinct airport codes, making it clear that they are not associated with GRU. For instance, Rome has FCO for Fiumicino Airport, Santiago uses SCL for Comodoro Arturo Merino Benítez International Airport, and Seoul is identified by ICN for Incheon International Airport. This reinforces why GRU is specifically connected to São Paulo.