Both the Appleton International Airport and the Pellston Regional Airport are categorized as what by the Federal Aviation Administration (FAA) National Plan of Integrated Airport Systems for 2017–2021?
Pellston Regional Airport Pellston Regional Airport (IATA: PLN, ICAO: KPLN, FAA LID: PLN) , also known as Pellston Regional Airport of Emmet County, is a public airport located one mile (2 km) northwest of the central business district of Pellston, a village in Emmet County, Michigan, United States. 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 non-hub primary commercial service facility.
Miller–Sparta Airport Paul C. Miller–Sparta Airport (FAA LID: 8D4) is a public airport located 3 mi (5 km) southeast of Sparta, Michigan. Established in 1941, the airport is currently owned and operated by the Village of Sparta and is self-supporting, requiring no public funding. 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 regional general aviation facility.