What does the airport code SCL signify?

The airport code SCL represents Santiago, Chile, which is the primary international airport serving the capital city, located in the region of Central Chile. This code is used worldwide within the aviation industry to identify the airport for flight operations, ticketing, and baggage handling. Santiago is a significant hub for flights in and out of South America, making its airport code widely recognized among travelers and in airline databases.

The other options refer to different cities with their own respective codes: San Diego has its own airport code (SAN), San Juan is identified by SJU, and Santa Barbara is recognized as SBA. Each of these codes corresponds specifically to their respective locations, illustrating that airport codes are unique identifiers critical for the air transportation infrastructure.