| Altamont to Montalegre | 5,324.25 mi (8,568.55 km) |
| Altamont to Montemor-o-Novo | 5,466.73 mi (8,797.85 km) |
| Altamont to Montemor-o-Velho | 5,374.04 mi (8,648.69 km) |
| Altamont to Montijo | 5,439.49 mi (8,754.01 km) |
| Altamont to Mortagua | 5,377.33 mi (8,653.98 km) |
| Altamont to Moura | 5,521.21 mi (8,885.53 km) |
| Altamont to Murtosa | 5,347.84 mi (8,606.52 km) |
| Altamont to Nazare | 5,387.88 mi (8,670.95 km) |
| Altamont to Nelas | 5,387.16 mi (8,669.80 km) |
| Altamont to Obidos | 5,396.43 mi (8,684.72 km) |
| Altamont to Odemira | 5,504.24 mi (8,858.22 km) |
| Altamont to Odivelas | 5,423.68 mi (8,728.57 km) |
| Altamont to Oeiras | 5,423.81 mi (8,728.78 km) |
| Altamont to Olhao | 5,562.16 mi (8,951.42 km) |
| Altamont to Oliveira de Azemeis | 5,348.34 mi (8,607.32 km) |
