| Port Neches to Cascais | 4,688.76 mi (7,545.82 km) |
| Port Neches to Castelo Branco | 4,755.49 mi (7,653.21 km) |
| Port Neches to Castro Daire | 4,706.62 mi (7,574.58 km) |
| Port Neches to Celorico de Basto | 4,691.28 mi (7,549.88 km) |
| Port Neches to Chamusca | 4,718.87 mi (7,594.29 km) |
| Port Neches to Chaves | 4,707.81 mi (7,576.48 km) |
| Port Neches to Cinfaes | 4,691.89 mi (7,550.87 km) |
| Port Neches to Coimbra | 4,699.73 mi (7,563.48 km) |
| Port Neches to Condeixa-a-Nova | 4,698.62 mi (7,561.70 km) |
| Port Neches to Corroios | 4,704.26 mi (7,570.78 km) |
| Port Neches to Coruche | 4,726.75 mi (7,606.97 km) |
| Port Neches to Costa de Caparica | 4,699.25 mi (7,562.71 km) |
| Port Neches to Covilha | 4,743.45 mi (7,633.85 km) |
| Port Neches to Eiras | 4,699.20 mi (7,562.63 km) |
| Port Neches to Elvas | 4,797.66 mi (7,721.09 km) |
