| Port Huron to Campo de Criptana | 3,972.00 mi (6,392.31 km) |
| Port Huron to Campos del Puerto | 4,246.50 mi (6,834.08 km) |
| Port Huron to Canals | 4,102.97 mi (6,603.09 km) |
| Port Huron to Candelaria | 3,744.89 mi (6,026.81 km) |
| Port Huron to Canet de Mar | 4,145.39 mi (6,671.35 km) |
| Port Huron to Cangas | 3,616.88 mi (5,820.80 km) |
| Port Huron to Cangas de Narcea | 3,688.55 mi (5,936.15 km) |
| Port Huron to Canovellas | 4,131.28 mi (6,648.66 km) |
| Port Huron to Canteras | 4,132.78 mi (6,651.06 km) |
| Port Huron to Cantillana | 3,912.56 mi (6,296.65 km) |
| Port Huron to Capdepera | 4,254.41 mi (6,846.82 km) |
| Port Huron to Carballo | 3,591.21 mi (5,779.49 km) |
| Port Huron to Carcagente | 4,103.10 mi (6,603.30 km) |
| Port Huron to Cardedeu | 4,133.82 mi (6,652.75 km) |
| Port Huron to Carlet | 4,095.96 mi (6,591.81 km) |
