Willow Run Airport — Detroit, United States

YIP is the code for Willow Run Airport in Ypsilanti, Michigan, a facility with deep historical roots tied to American aviation manufacturing during World War II. Willow Run was once home to a massive Ford-operated bomber plant that produced B-24 Liberator aircraft at an extraordinary pace, earning the site lasting fame in aviation history. Today, YIP functions primarily as a cargo and general aviation airport, supporting freight operations, corporate flights, and flight training rather than scheduled passenger service. The Yankee Air Museum near the field preserves much of this wartime legacy for visitors interested in aviation heritage. Willow Run's long runways, a legacy of its industrial past, continue to accommodate large cargo aircraft efficiently.