| Etterbeek to Montemor-o-Novo | 1,041.40 mi (1,675.96 km) |
| Etterbeek to Montemor-o-Velho | 968.47 mi (1,558.60 km) |
| Etterbeek to Montijo | 1,059.34 mi (1,704.85 km) |
| Etterbeek to Mortagua | 939.63 mi (1,512.18 km) |
| Etterbeek to Moura | 1,050.81 mi (1,691.12 km) |
| Etterbeek to Murtosa | 935.54 mi (1,505.60 km) |
| Etterbeek to Nazare | 1,012.12 mi (1,628.85 km) |
| Etterbeek to Nelas | 923.20 mi (1,485.75 km) |
| Etterbeek to Obidos | 1,028.56 mi (1,655.31 km) |
| Etterbeek to Odemira | 1,116.11 mi (1,796.21 km) |
| Etterbeek to Odivelas | 1,061.54 mi (1,708.38 km) |
| Etterbeek to Oeiras | 1,071.80 mi (1,724.89 km) |
| Etterbeek to Olhao | 1,128.11 mi (1,815.52 km) |
| Etterbeek to Oliveira de Azemeis | 924.65 mi (1,488.08 km) |
| Etterbeek to Oliveira de Frades | 922.28 mi (1,484.27 km) |
