| Sigmaringen to Montemor-o-Novo | 1,087.50 mi (1,750.16 km) |
| Sigmaringen to Montemor-o-Velho | 1,039.05 mi (1,672.18 km) |
| Sigmaringen to Montijo | 1,113.36 mi (1,791.77 km) |
| Sigmaringen to Mortagua | 1,009.02 mi (1,623.86 km) |
| Sigmaringen to Moura | 1,082.07 mi (1,741.43 km) |
| Sigmaringen to Murtosa | 1,013.45 mi (1,630.99 km) |
| Sigmaringen to Nazare | 1,079.27 mi (1,736.91 km) |
| Sigmaringen to Nelas | 989.53 mi (1,592.49 km) |
| Sigmaringen to Obidos | 1,093.59 mi (1,759.96 km) |
| Sigmaringen to Odemira | 1,154.69 mi (1,858.29 km) |
| Sigmaringen to Odivelas | 1,119.82 mi (1,802.17 km) |
| Sigmaringen to Oeiras | 1,130.24 mi (1,818.94 km) |
| Sigmaringen to Olhao | 1,151.89 mi (1,853.80 km) |
| Sigmaringen to Oliveira de Azemeis | 1,002.42 mi (1,613.24 km) |
| Sigmaringen to Oliveira de Frades | 995.14 mi (1,601.53 km) |
