Identify the airport represented by the designator code GRU.

The designator code GRU refers to São Paulo/Guarulhos–Governador André Franco Montoro International Airport, which is located in Brazil. This airport serves as one of the primary international gateways into Brazil and is the largest airport in the country, accommodating a significant amount of international and domestic flights.

Each airport around the world is assigned unique three-letter designator codes to streamline air traffic management and to serve as concise identifiers. In this case, GRU is specifically designated for São Paulo, making it distinct from the other listed airports, which correspond to different regions and countries. Recognizing airport codes is crucial for travel planning and logistics, as it aids in understanding flight routes and connections.