| Key Biscayne to Cividale del Friuli | 5,123.15 mi (8,244.91 km) |
| Key Biscayne to Civita Castellana | 5,169.82 mi (8,320.02 km) |
| Key Biscayne to Civitanova Marche | 5,206.97 mi (8,379.80 km) |
| Key Biscayne to Civitavecchia | 5,145.52 mi (8,280.91 km) |
| Key Biscayne to Civitella in Val di Chiana | 5,109.53 mi (8,222.99 km) |
| Key Biscayne to Clusone | 4,970.76 mi (7,999.66 km) |
| Key Biscayne to Coccaglio | 4,979.12 mi (8,013.12 km) |
| Key Biscayne to Codigoro | 5,094.09 mi (8,198.15 km) |
| Key Biscayne to Codogno | 4,975.48 mi (8,007.26 km) |
| Key Biscayne to Codroipo | 5,106.12 mi (8,217.50 km) |
| Key Biscayne to Cogoleto | 4,943.05 mi (7,955.07 km) |
| Key Biscayne to Colle di Val d'Elsa | 5,082.45 mi (8,179.41 km) |
| Key Biscayne to Colle Salvetti | 5,047.12 mi (8,122.55 km) |
| Key Biscayne to Collecchio | 5,008.32 mi (8,060.11 km) |
| Key Biscayne to Colleferro | 5,213.00 mi (8,389.51 km) |
