| Port Neches to Castrovillari | 5,858.51 mi (9,428.35 km) |
| Port Neches to Catania | 5,901.30 mi (9,497.22 km) |
| Port Neches to Catanzaro | 5,912.62 mi (9,515.44 km) |
| Port Neches to Cattolica | 5,550.43 mi (8,932.56 km) |
| Port Neches to Cava de' Tirreni | 5,758.73 mi (9,267.79 km) |
| Port Neches to Cavallino | 5,924.01 mi (9,533.77 km) |
| Port Neches to Cavarzere | 5,480.03 mi (8,819.26 km) |
| Port Neches to Cave | 5,639.59 mi (9,076.04 km) |
| Port Neches to Cavriago | 5,431.37 mi (8,740.94 km) |
| Port Neches to Cavriglia | 5,514.32 mi (8,874.45 km) |
| Port Neches to Cazzago San Martino | 5,378.83 mi (8,656.39 km) |
| Port Neches to Ceccano | 5,666.32 mi (9,119.06 km) |
| Port Neches to Cecina | 5,480.30 mi (8,819.69 km) |
| Port Neches to Cefalu | 5,832.10 mi (9,385.86 km) |
| Port Neches to Ceglie Messapico | 5,880.72 mi (9,464.10 km) |
