Ontario International Airport

Ontario International Airport is an airport located in Ontario California, US. The airport's IATA code is ONT, which is the three-letter code used on boarding passes and flight bookings. The ICAO code is KONT, used by air traffic control and pilots for flight planning.

The airport operates in the America/Los_Angeles timezone. When planning flights to or from ONT, use our flight duration calculator to account for timezone differences, especially for international travel.

Ontario International Airport sits at an elevation of 944 feet (288 meters) above sea level.

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