| Port Arthur to Collegno | 5,298.05 mi (8,526.39 km) |
| Port Arthur to Cologno al Serio | 5,370.41 mi (8,642.84 km) |
| Port Arthur to Cologno Monzese | 5,354.69 mi (8,617.54 km) |
| Port Arthur to Colorno | 5,421.90 mi (8,725.70 km) |
| Port Arthur to Comacchio | 5,505.52 mi (8,860.28 km) |
| Port Arthur to Comiso | 5,905.26 mi (9,503.60 km) |
| Port Arthur to Como | 5,336.91 mi (8,588.93 km) |
| Port Arthur to Concordia Sagittaria | 5,493.63 mi (8,841.14 km) |
| Port Arthur to Concorezzo | 5,354.98 mi (8,618.01 km) |
| Port Arthur to Conegliano | 5,466.69 mi (8,797.79 km) |
| Port Arthur to Conselice | 5,497.64 mi (8,847.60 km) |
| Port Arthur to Conselve | 5,472.88 mi (8,807.75 km) |
| Port Arthur to Conversano | 5,856.74 mi (9,425.52 km) |
| Port Arthur to Copertino | 5,924.76 mi (9,534.98 km) |
| Port Arthur to Copparo | 5,483.65 mi (8,825.08 km) |
