Nogales International Airport — Nogales, United States

OLS represents Nogales International Airport, situated near Nogales, Arizona, close to the U.S.-Mexico border. Despite its international designation, the airport primarily handles general aviation, agricultural spraying operations, and border patrol or customs-related flights rather than scheduled international airline service. Its location makes it strategically useful for cross-border commerce support and surveillance operations tied to the nearby port of entry. The airport features paved runways suitable for small aircraft and occasional cargo operations tied to produce shipments that flow through Nogales, a major hub for Mexican agricultural imports into the United States. OLS remains a modest but functionally important airfield within this binational border community.