Which of the following airport codes pertains to San Antonio, Texas?

The airport code that pertains to San Antonio, Texas, is SAT. This three-letter code is designated by the International Air Transport Association (IATA) specifically for San Antonio International Airport, which serves as the primary airport for the city and its surrounding areas. Each airport has a unique code to avoid confusion and ensure efficient identification in air travel and logistics. The correct code assists travelers in booking flights and navigating airports.

The other codes represent different locations: SAN is the code for San Diego International Airport in California; RNO refers to Reno-Tahoe International Airport in Nevada; and RSW is the airport code for Southwest Florida International Airport. By understanding the specific assignment of these codes, one can effectively identify and differentiate between various airports in the United States.