| Port Arthur to Cividale del Friuli | 5,504.87 mi (8,859.23 km) |
| Port Arthur to Civita Castellana | 5,604.04 mi (9,018.83 km) |
| Port Arthur to Civitanova Marche | 5,622.61 mi (9,048.72 km) |
| Port Arthur to Civitavecchia | 5,584.95 mi (8,988.11 km) |
| Port Arthur to Civitella in Val di Chiana | 5,532.97 mi (8,904.46 km) |
| Port Arthur to Clusone | 5,370.30 mi (8,642.66 km) |
| Port Arthur to Coccaglio | 5,382.71 mi (8,662.63 km) |
| Port Arthur to Codigoro | 5,497.86 mi (8,847.95 km) |
| Port Arthur to Codogno | 5,385.43 mi (8,667.01 km) |
| Port Arthur to Codroipo | 5,491.62 mi (8,837.92 km) |
| Port Arthur to Cogoleto | 5,367.34 mi (8,637.90 km) |
| Port Arthur to Colle di Val d'Elsa | 5,508.71 mi (8,865.40 km) |
| Port Arthur to Colle Salvetti | 5,473.70 mi (8,809.08 km) |
| Port Arthur to Collecchio | 5,421.40 mi (8,724.90 km) |
| Port Arthur to Colleferro | 5,651.29 mi (9,094.87 km) |
