Willow Run Airport is an airport in Van Buren Charter Township and Ypsilanti Charter Township, near Ypsilanti, Michigan, United States, that serves freight, corporate, and general aviation. Due to its very close proximity to Detroit Metropolitan Airport, no major airlines schedule passenger flights to or from Willow Run. It is included in the Federal Aviation Administration (FAA) National Plan of Integrated Airport Systems for 2017–2021, in which it is categorized as a national reliever airport facility.

Van Buren Township is a charter township in Wayne County in the U.S. state of Michigan. A western suburb of Detroit, Van Buren Township is located roughly 28 miles (45.1 km) southwest of downtown Detroit, and 17 miles (27.4 km) southeast of Ann Arbor. As of the 2020 census, the township had a population of 30,375. It surrounds, but is independent of, the city of Belleville.