| Darlington to Montalegre | 922.73 mi (1,484.99 km) |
| Darlington to Montemor-o-Novo | 1,140.47 mi (1,835.40 km) |
| Darlington to Montemor-o-Velho | 1,045.55 mi (1,682.64 km) |
| Darlington to Montijo | 1,147.39 mi (1,846.55 km) |
| Darlington to Mortagua | 1,021.40 mi (1,643.79 km) |
| Darlington to Moura | 1,166.10 mi (1,876.66 km) |
| Darlington to Murtosa | 1,007.23 mi (1,620.98 km) |
| Darlington to Nazare | 1,088.81 mi (1,752.26 km) |
| Darlington to Nelas | 1,010.63 mi (1,626.45 km) |
| Darlington to Obidos | 1,106.21 mi (1,780.27 km) |
| Darlington to Odemira | 1,217.43 mi (1,959.27 km) |
| Darlington to Odivelas | 1,144.26 mi (1,841.51 km) |
| Darlington to Oeiras | 1,153.38 mi (1,856.19 km) |
| Darlington to Olhao | 1,245.38 mi (2,004.24 km) |
| Darlington to Oliveira de Azemeis | 997.82 mi (1,605.83 km) |
