- Clarke Island AirportIdent: YCKDServes: Cape Barren Island
- Clifton AirportIdent: YCFNAirport type: Small airport
- Clifton Hills AirportIdent: YCFHServes: Clifton Hills
- Cluny AirportIdent: YUNYAirport type: Small airport
- Cobden airportIdent: YCDEServes: Camperdown
- Cockatoo Island AirportIdent: YCTIServes: Kimbolton
- Cocklebiddy AirportIdent: YCKYAirport type: Small airport
- Coconut Island AirportIdent: YCCTAirport type: Small airport
- Coffin Bay AirportIdent: YCOFServes: Coffin Bay
- Cohuna AirportIdent: YCOHAirport type: Small airport
- Colac AirportIdent: YOLAServes: Colac Otway Shire
- Coldstream AirportIdent: YCEMServes: Coldstream
- Coleambally AirportIdent: YCLYAirport type: Small airport
- Collarenebri AirportIdent: YCBRAirport type: Small airport
- Collector AirportIdent: YCLTAirport type: Small airport
- Collie AirportIdent: YCOIServes: Collie
- Collinsville AirportIdent: YCSVAirport type: Small airport
- Commonwealth Hill AirportIdent: YCWHAirport type: Small airport
- Conargo AirportIdent: YCNOAirport type: Small airport
- Condobolin AirportIdent: YCDOAirport type: Small airport
- Coniston AirportIdent: YCNSAirport type: Small airport
- Conjuboy AirportIdent: YCJUAirport type: Small airport
- Consuelo AirportIdent: YCSLAirport type: Small airport
- Cooinda AirportIdent: YCOOAirport type: Small airport
- Cook AirportIdent: YOOKAirport type: Small airport
- Coolah AirportIdent: YCAHAirport type: Small airport
- Coolawanyah AirportIdent: YCWYServes: Coolawanyah Station
- Coolgardie AirportIdent: YCLGServes: Coolgardie
- Cooloola Village AirparkIdent: YCXAAirport type: Small airport
- Cooma/Polo Flat AirportIdent: YPFTAirport type: Small airport
- Coombing Park AirportIdent: YCPKServes: Carcoar
- Coonana AirportIdent: YCNNAirport type: Small airport
- Coonawarra AirportIdent: YCNQAirport type: Small airport
- Coondambo AirportIdent: YCDBServes: Glendambo
- Coondewanna AirportIdent: YCWAServes: Coondewanna
- Coongan AirportIdent: YCOGAirport type: Small airport
- Cooranga AirportIdent: YCNGAirport type: Small airport
- Cooranga AirportIdent: YCNXAirport type: Small airport
- Copper Hills AirstripIdent: YCPHServes: Evelyn Downs
- Coppins Gap AirportIdent: YCPGAirport type: Small airport
- Coral Bay AirportIdent: YCOYServes: Lyndon
- Cordillo Downs AirportIdent: YCODServes: Cordillo Downs
- Corowa Downs AirportIdent: YCWNAirport type: Small airport
- Corrigin AirportIdent: YCIGAirport type: Small airport
- Cowarie AirportIdent: YCWIAirport type: Small airport
- Cowell AirportIdent: YCWLAirport type: Small airport
- Cranbourn AirfieldIdent: AU-0627Serves: Mount Direction
- Cranbrook AirportIdent: YCRNAirport type: Small airport
- Croker Island AirportIdent: YCKIAirport type: Small airport
- Crookwell AirportIdent: YCRLServes: Crookwell
- Croydon AirportIdent: YCRYAirport type: Small airport
- Crystal Brook AirportIdent: YCYTAirport type: Small airport
- Cudal AirportIdent: YCUAAirport type: Small airport
- Cue AirportIdent: YCUEAirport type: Small airport
- Cummins AirportIdent: YCUSAirport type: Small airport
- Cummins Town AirportIdent: YCMMAirport type: Small airport
- Cunderdin AirportIdent: YCUNAirport type: Small airport
- Curdimurka AirportIdent: YCKAAirport type: Small airport
- Curtin Springs AirportIdent: YCSPAirport type: Small airport
- Cuthero AirportIdent: YCUTAirport type: Small airport