| Herisau to Montalegre | 920.35 mi (1,481.16 km) |
| Herisau to Montemor-o-Novo | 1,065.79 mi (1,715.22 km) |
| Herisau to Montemor-o-Velho | 1,021.49 mi (1,643.93 km) |
| Herisau to Montijo | 1,092.70 mi (1,758.52 km) |
| Herisau to Mortagua | 991.50 mi (1,595.67 km) |
| Herisau to Moura | 1,058.16 mi (1,702.94 km) |
| Herisau to Murtosa | 997.27 mi (1,604.96 km) |
| Herisau to Nazare | 1,060.88 mi (1,707.33 km) |
| Herisau to Nelas | 971.67 mi (1,563.76 km) |
| Herisau to Obidos | 1,074.78 mi (1,729.69 km) |
| Herisau to Odemira | 1,131.43 mi (1,820.87 km) |
| Herisau to Odivelas | 1,099.78 mi (1,769.92 km) |
| Herisau to Oeiras | 1,110.16 mi (1,786.63 km) |
| Herisau to Olhao | 1,126.47 mi (1,812.88 km) |
| Herisau to Oliveira de Azemeis | 986.30 mi (1,587.30 km) |
