Willow Run Airport
airport near Ypsilanti, Michigan, United States

Willow Run Airport (IATA: YIP, ICAO: KYIP, FAA LID: YIP) is a Wayne County-owned airport in Van Buren Charter Township and Ypsilanti Charter Township, near Ypsilanti, Michigan, United States, that serves freight, corporate, and general aviation. It is operated by the Wayne County Airport Authority.
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. The Michigan Flight Museum is located in one of the airport's hangars and has a large collection of vintage aircraft.
Opened in 1942, "Willow Run" was synonymous with the American industrial effort that contributed so much to Allied victory in World War II. Operated by the Ford Motor Company, the Willow Run manufacturing plant produced a total of 8,865 B-24 Liberator heavy bombers, completed and in kit form, before closure in June 1945; Willow Run produced more Liberators than either plant owned by the plane's designer, Consolidated Aircraft.
Overview
Willow Run Airport covers 2,392 acres (968 ha) and has two runways, a continuously staffed FAA control tower, and US Customs operations. It is one of two facilities operated by the Wayne County Airport Authority, the other being Detroit Metropolitan Airport, which replaced Willow Run as the major commercial airport for the region starting in 1958. Worldwide cargo airline Kalitta Air is headquartered at the airport.
History
Willow Run Airport was named for a small stream that meandered through pastureland and woods until the late 1930s.
Begin with the source’s own compact description: “Willow Run Airport” is airport near Ypsilanti, Michigan, United States. The dossier treats that line as a proposition to test through Willow, Airport and airport, not as a finished interpretation.
Why this record matters
The phrase “airport near Ypsilanti, Michigan, United States” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
The strongest evidence will usually combine a dated visual record with documents produced by the authority responsible for the place. The source revision retrieved here is dated Jul 6, 2026. The linked authority identifier is Q8022363. VIAF identifies the subject as 309840697. The Library of Congress control number is no2014082880. Authority coordinates are 42.238, -83.530. 3 of 4 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 2017, 2021, 1942 and 1945.
Architectural summaries often privilege surviving fabric and can understate demolished phases, contested use or displaced communities. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “Willow Run Airport”, its source revision and the description used here.
- Expand the search: follow Willow Run Airport primary sources, Willow Run Airport archive and Willow research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Willow Run Airport”?
- Which earlier names or jurisdictions may reveal additional records?
- Which authority defined the place, boundary or structure at the relevant date?
Search terms from this dossier
This entry incorporates text from “Willow Run Airport” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.