Cincinnati Municipal Airport Lunken Field — Cincinnati, United States

LUK is Cincinnati Municipal Airport, widely known as Lunken Field, located in a bend of the Ohio River in Cincinnati, Ohio. Lunken predates the larger Cincinnati/Northern Kentucky International Airport (CVG) and was historically the city's primary commercial airport before operations shifted to CVG in the mid-20th century. Today LUK primarily serves general aviation, corporate jets, and flight training activity rather than scheduled airline service. The airport retains a distinctive Art Deco terminal building from the 1930s that reflects its historic status as an early aviation hub. Because of its riverside location, Lunken Field has periodically dealt with flooding concerns. It remains an active reliever airport supporting the greater Cincinnati area's general aviation traffic.