Harrisburg International Airport and Tucson International Airport, are which classification of airports?
Tucson International Airport Tucson International Airport (IATA: TUS, ICAO: KTUS, FAA LID: TUS) is a public joint civil-military airport owned by the City of Tucson 8 mi south of downtown Tucson, in Pima County, Arizona. It is the second busiest airport in Arizona, after Phoenix Sky Harbor International Airport.
Greenville–Spartanburg International Airport Greenville–Spartanburg International Airport (IATA: GSP, ICAO: KGSP, FAA LID: GSP) (Roger Milliken Field) is near Greer, South Carolina, midway between Greenville and Spartanburg, the major cities of the Upstate region. The airport is the second-busiest airport in South Carolina, after Charleston International Airport, with about 2.02 million passengers in 2016.