| Altdorf to Montalegre | 881.06 mi (1,417.92 km) |
| Altdorf to Montemor-o-Novo | 1,022.78 mi (1,646.01 km) |
| Altdorf to Montemor-o-Velho | 980.41 mi (1,577.81 km) |
| Altdorf to Montijo | 1,050.12 mi (1,690.01 km) |
| Altdorf to Mortagua | 950.46 mi (1,529.62 km) |
| Altdorf to Moura | 1,014.28 mi (1,632.33 km) |
| Altdorf to Murtosa | 956.90 mi (1,539.98 km) |
| Altdorf to Nazare | 1,019.37 mi (1,640.52 km) |
| Altdorf to Nelas | 930.48 mi (1,497.47 km) |
| Altdorf to Obidos | 1,033.05 mi (1,662.54 km) |
| Altdorf to Odemira | 1,087.78 mi (1,750.61 km) |
| Altdorf to Odivelas | 1,057.48 mi (1,701.84 km) |
| Altdorf to Oeiras | 1,067.84 mi (1,718.52 km) |
| Altdorf to Olhao | 1,082.03 mi (1,741.36 km) |
| Altdorf to Oliveira de Azemeis | 945.97 mi (1,522.40 km) |
