Which airport code corresponds to Ontario, California?

The code for Ontario, California, is ONT. This three-letter code follows the standard format for airport identifiers established by the International Air Transport Association (IATA), which is widely used for travel and ticketing. Each airport around the world is assigned a unique code to facilitate easier recognition and communication, particularly in flight schedules and tickets.

Ontario International Airport serves the city of Ontario and surrounding areas, making ONT the appropriate identifier for this location. Codes like PSP, PTY, and PHL represent different airports: PSP is for Palm Springs International Airport, PTY is for Tocumen International Airport in Panama City, Panama, and PHL is for Philadelphia International Airport. Thus, ONT is distinctively used to denote Ontario, California in aviation contexts.