| Altensteig to Montemor-o-Novo | 1,081.79 mi (1,740.97 km) |
| Altensteig to Montemor-o-Velho | 1,029.35 mi (1,656.57 km) |
| Altensteig to Montijo | 1,106.55 mi (1,780.82 km) |
| Altensteig to Mortagua | 999.34 mi (1,608.28 km) |
| Altensteig to Moura | 1,078.62 mi (1,735.87 km) |
| Altensteig to Murtosa | 1,002.50 mi (1,613.37 km) |
| Altensteig to Nazare | 1,070.29 mi (1,722.46 km) |
| Altensteig to Nelas | 980.21 mi (1,577.49 km) |
| Altensteig to Obidos | 1,085.00 mi (1,746.15 km) |
| Altensteig to Odemira | 1,150.44 mi (1,851.45 km) |
| Altensteig to Odivelas | 1,112.38 mi (1,790.21 km) |
| Altensteig to Oeiras | 1,122.83 mi (1,807.01 km) |
| Altensteig to Olhao | 1,149.91 mi (1,850.61 km) |
| Altensteig to Oliveira de Azemeis | 991.43 mi (1,595.55 km) |
| Altensteig to Oliveira de Frades | 984.86 mi (1,584.98 km) |
