| Vianden to Montemor-o-Novo | 1,053.11 mi (1,694.81 km) |
| Vianden to Montemor-o-Velho | 988.49 mi (1,590.82 km) |
| Vianden to Montijo | 1,074.08 mi (1,728.57 km) |
| Vianden to Mortagua | 958.93 mi (1,543.25 km) |
| Vianden to Moura | 1,057.23 mi (1,701.45 km) |
| Vianden to Murtosa | 957.95 mi (1,541.67 km) |
| Vianden to Nazare | 1,031.26 mi (1,659.66 km) |
| Vianden to Nelas | 941.21 mi (1,514.72 km) |
| Vianden to Obidos | 1,047.07 mi (1,685.10 km) |
| Vianden to Odemira | 1,125.70 mi (1,811.64 km) |
| Vianden to Odivelas | 1,077.85 mi (1,734.63 km) |
| Vianden to Oeiras | 1,088.25 mi (1,751.37 km) |
| Vianden to Olhao | 1,132.46 mi (1,822.52 km) |
| Vianden to Oliveira de Azemeis | 946.90 mi (1,523.89 km) |
| Vianden to Oliveira de Frades | 942.69 mi (1,517.11 km) |
