What does the city code SJO stand for?

The city code SJO stands for San Jose, Costa Rica. This code is derived from the International Air Transport Association (IATA) airport code system, which assigns unique three-letter codes to airports around the world for efficiency in travel and logistics. San Jose is the capital city of Costa Rica and is served by Juan Santamaría International Airport, which is commonly identified by the SJO code.

In contrast, the other options refer to locations in California, which either have their own distinct codes or do not correspond to SJO at all. For instance, San Jose, California, is designated by the code SJC, while Santa Ana and Santa Monica have different identifiers as well. Understanding these codes is essential for travelers, as they facilitate easier navigation and booking for flights.