| Horw to Montalegre | 870.03 mi (1,400.18 km) |
| Horw to Montemor-o-Novo | 1,014.51 mi (1,632.70 km) |
| Horw to Montemor-o-Velho | 970.56 mi (1,561.97 km) |
| Horw to Montijo | 1,041.46 mi (1,676.07 km) |
| Horw to Mortagua | 940.58 mi (1,513.72 km) |
| Horw to Moura | 1,006.90 mi (1,620.44 km) |
| Horw to Murtosa | 946.56 mi (1,523.34 km) |
| Horw to Nazare | 1,009.84 mi (1,625.18 km) |
| Horw to Nelas | 920.71 mi (1,481.74 km) |
| Horw to Obidos | 1,023.69 mi (1,647.47 km) |
| Horw to Odemira | 1,080.15 mi (1,738.34 km) |
| Horw to Odivelas | 1,048.58 mi (1,687.52 km) |
| Horw to Oeiras | 1,058.96 mi (1,704.23 km) |
| Horw to Olhao | 1,075.31 mi (1,730.54 km) |
| Horw to Oliveira de Azemeis | 935.60 mi (1,505.71 km) |
