The Airport Drive-In was located on the south side of North Temple, across the street from the Salt Lake International Airport. The theater was at 2711 West North Temple Street, which, according to MapQuest.com, is within an area which was annexed into the airport. The street was redirected around the edge of the annexed property, apparently so lights leading to the runway could be installed. Image courtesy of the US Geological Survey, 8 October 1998
This geological survey map from 1975 does not show the Airport Drive-In. At the time North Temple Street still continued in a straight line at the end of the runway. Image courtesy of the US Geological Survey, 1 July 1975