| Alsdorf to Montemor-o-Novo | 1,097.03 mi (1,765.50 km) |
| Alsdorf to Montemor-o-Velho | 1,028.25 mi (1,654.82 km) |
| Alsdorf to Montijo | 1,116.58 mi (1,796.96 km) |
| Alsdorf to Mortagua | 999.02 mi (1,607.77 km) |
| Alsdorf to Moura | 1,103.59 mi (1,776.06 km) |
| Alsdorf to Murtosa | 996.44 mi (1,603.62 km) |
| Alsdorf to Nazare | 1,071.53 mi (1,724.46 km) |
| Alsdorf to Nelas | 981.92 mi (1,580.25 km) |
| Alsdorf to Obidos | 1,087.68 mi (1,750.44 km) |
| Alsdorf to Odemira | 1,170.70 mi (1,884.05 km) |
| Alsdorf to Odivelas | 1,119.58 mi (1,801.79 km) |
| Alsdorf to Oeiras | 1,129.92 mi (1,818.44 km) |
| Alsdorf to Olhao | 1,179.82 mi (1,898.74 km) |
| Alsdorf to Oliveira de Azemeis | 985.46 mi (1,585.95 km) |
| Alsdorf to Oliveira de Frades | 982.19 mi (1,580.69 km) |
