| Sidney to Corato | 4,928.14 mi (7,931.08 km) |
| Sidney to Corbetta | 4,449.19 mi (7,160.28 km) |
| Sidney to Corciano | 4,677.10 mi (7,527.07 km) |
| Sidney to Cordenons | 4,582.15 mi (7,374.26 km) |
| Sidney to Cori | 4,762.86 mi (7,665.08 km) |
| Sidney to Coriano | 4,657.13 mi (7,494.93 km) |
| Sidney to Corigliano Calabro | 4,998.78 mi (8,044.76 km) |
| Sidney to Corleone | 4,936.53 mi (7,944.58 km) |
| Sidney to Cormano | 4,456.33 mi (7,171.76 km) |
| Sidney to Cornaredo | 4,452.73 mi (7,165.97 km) |
| Sidney to Cornate d'Adda | 4,464.84 mi (7,185.46 km) |
| Sidney to Cornedo Vicentino | 4,542.32 mi (7,310.15 km) |
| Sidney to Correggio | 4,551.67 mi (7,325.21 km) |
| Sidney to Corridonia | 4,723.16 mi (7,601.19 km) |
| Sidney to Corsico | 4,458.61 mi (7,175.44 km) |
