Falcon Field (IATA: MSC, ICAO: KFFZ, FAA LID: FFZ) is in an airport located in Maricopa County, Arizona. It was originally built 6 miles (5.2 nmi; 9.7 km) northeast of Mesa, which owns it. However, it is now within city limits. The National Plan of Integrated Airport Systems for 2017–2021 categorized it as a reliever airport. Scheduled service to Bullhead City on Western Express Air ended in January 2007. Most U.S. airports use the same three-letter location identifier for the FAA and IATA, but Falcon Field is FFZ to the FAA and MSC to the IATA.