| Port Neches to Cocentaina | 5,130.35 mi (8,256.50 km) |
| Port Neches to Coin | 4,978.46 mi (8,012.05 km) |
| Port Neches to Colindres | 4,854.24 mi (7,812.15 km) |
| Port Neches to Collado-Villalba | 4,903.43 mi (7,891.31 km) |
| Port Neches to Colmenar Viejo | 4,914.36 mi (7,908.90 km) |
| Port Neches to Colmenarejo | 4,905.02 mi (7,893.87 km) |
| Port Neches to Conil de la Frontera | 4,922.18 mi (7,921.49 km) |
| Port Neches to Consuegra | 4,955.65 mi (7,975.35 km) |
| Port Neches to Corbera de Llobregat | 5,160.69 mi (8,305.33 km) |
| Port Neches to Cordoba | 4,942.42 mi (7,954.06 km) |
| Port Neches to Coria del Rio | 4,895.57 mi (7,878.66 km) |
| Port Neches to Crevillente | 5,127.51 mi (8,251.92 km) |
| Port Neches to Cuarte de Huerva | 5,023.07 mi (8,083.85 km) |
| Port Neches to Cubellas | 5,155.15 mi (8,296.41 km) |
| Port Neches to Cuellar | 4,867.76 mi (7,833.90 km) |
