Santa Monica Municipal Airport — Santa Monica, United States

Santa Monica Municipal Airport, coded SMO, is a historic general aviation airport located in Santa Monica, California, just a few miles from downtown Los Angeles. Established in the 1920s, the airport has deep aviation heritage, having served as a Douglas Aircraft Company production site during World War II. Today SMO caters primarily to private and corporate aircraft, flight training, and charter operations, though its single runway has been shortened in recent years amid ongoing community debates over noise and safety. Surrounded by dense residential neighborhoods, the airport remains a contentious but iconic piece of Southern California aviation infrastructure, with local plans eventually calling for its conversion to parkland after continued operational restrictions.