| Prudhoe to Montalegre | 946.96 mi (1,523.98 km) |
| Prudhoe to Montemor-o-Novo | 1,165.34 mi (1,875.43 km) |
| Prudhoe to Montemor-o-Velho | 1,069.45 mi (1,721.11 km) |
| Prudhoe to Montijo | 1,171.60 mi (1,885.51 km) |
| Prudhoe to Mortagua | 1,045.68 mi (1,682.86 km) |
| Prudhoe to Moura | 1,191.81 mi (1,918.03 km) |
| Prudhoe to Murtosa | 1,030.96 mi (1,659.17 km) |
| Prudhoe to Nazare | 1,112.53 mi (1,790.44 km) |
| Prudhoe to Nelas | 1,035.28 mi (1,666.13 km) |
| Prudhoe to Obidos | 1,129.93 mi (1,818.44 km) |
| Prudhoe to Odemira | 1,242.21 mi (1,999.15 km) |
| Prudhoe to Odivelas | 1,168.16 mi (1,879.96 km) |
| Prudhoe to Oeiras | 1,177.18 mi (1,894.48 km) |
| Prudhoe to Olhao | 1,270.99 mi (2,045.46 km) |
| Prudhoe to Oliveira de Azemeis | 1,021.68 mi (1,644.24 km) |
