Situated in the southwest corner of San Bernardino County along the southern edge of the San Gabriel
Mountains, ONT originated in 1923 as a dirt landing strip east of its current location serving the agricultural
uses of the region. Throughout the years the airport has seen significant changes.
In 1929, the City of Ontario purchased additional land for the airport and it became known as Ontario
Municipal Airport.
In 1942, with the escalation of World War II, two concrete runways were constructed along with an
air traffic control tower and an instrument landing system.
In 1946, in recognition of the transpacific cargo flights originating from the airport, Ontario Municipal
Airport was renamed Ontario International Airport.
During the 1950s, Lockheed, Douglas and Northrop all had facilities at the airport throughout the
postwar economic boom.In 1967, the Los Angeles City Department of Airports co-signed a joint powers agreement with the
City of Ontario and the airport became part of Los Angeles' regional airport system.
In 1985, the City of Los Angeles became the official title holder for the airport.
In 1998, service at the new terminal complex began.
In 1999, the new ground transportation center opened, including six on-airport car rental companies.
In 2006, the Runway 8L-26R reconstruction and lengthening project was completed.
Today, the airport is managed by the Ontario International Airport Authority (OIAA). The airport is
currently served by a multitude of airlines, including several dedicated cargo airlines.
The Airport frequently sees activity from all sizes of aircraft ranging from small general aviation aircraft to 747-
400s.













