It's a Mad Mad Mad Mad World (1963)

Nothing verified yet — 4 candidates from our sources, below.

Candidates, not yet verified

4 places named by a source we have not checked. Each row says who said it and links to where.

John Wayne Airport
In review
Source: IMDb — recorded for It's a Mad Mad Mad Mad World by MovieMaps. Not yet verified by us.
John Wayne Airport, 18601 Airport Way, Santa Ana, CA 92707, USA · MovieMaps
Where this came from
Rancho Conejo Airport
In review
The airport terminal scenes were filmed at the now-defunct Rancho Conejo Airport in Newbury Park, California, though the control tower shown was specially constructed for filming. — recorded for It's a Mad Mad Mad Mad World by Wikipedia. Not yet verified by us.
Newbury Park, California · Wikipedia · No coordinate yet — not on the map
Where this came from
San Diego
In review
Some scenes were filmed in San Diego. — recorded for It's a Mad Mad Mad Mad World by Wikipedia. Not yet verified by us.
California · Wikipedia · No coordinate yet — not on the map
Where this came from
Sonoma County Airport
In review
Other airplane sequences were filmed at the Sonoma County Airport north of Santa Rosa, California; — recorded for It's a Mad Mad Mad Mad World by Wikipedia. Not yet verified by us.
north of Santa Rosa, California · Wikipedia · No coordinate yet — not on the map
Where this came from