|The Australian government ordered 24 F-111C aircraft in 1963 to replace the Royal Australian Air Force's English Electric Canberras in the bombing and tactical strike role. While the first aircraft was officially handed over in 1968, structural integrity problems found in the U.S. Air Force F-111s delayed the entry into service of the F-111C until 1973. USAF F-4 Phantom IIs were leased as an interim measure. Four F-111Cs were modified to the RF-111C reconnaissance configuration, but retained their air strike capability.|
Since their introduction Australia's F-111s have been operated by the No. 1 Squadron RAAF in the strike role, with the No. 6 Squadron RAAF operating the aircraft as an operational conversion unit. A temporary flight designated the Washington Flying Unit ferried to Australia the first 12 F-111Cs from the United States in 1973, and F-111s had been lent to the RAAF's Aircraft Research and Development Unit.
Royal Australian Air Force has operated F-111C/RF-111C and F-111G. Operates the F-111C/RF-111C as of 2009. Its last F-111s are to be retired in 2010.