| Ottweiler to Montemor-o-Novo | 1,060.43 mi (1,706.59 km) |
| Ottweiler to Montemor-o-Velho | 1,000.77 mi (1,610.59 km) |
| Ottweiler to Montijo | 1,083.02 mi (1,742.96 km) |
| Ottweiler to Mortagua | 970.96 mi (1,562.60 km) |
| Ottweiler to Moura | 1,061.52 mi (1,708.36 km) |
| Ottweiler to Murtosa | 971.73 mi (1,563.84 km) |
| Ottweiler to Nazare | 1,042.87 mi (1,678.34 km) |
| Ottweiler to Nelas | 952.59 mi (1,533.05 km) |
| Ottweiler to Obidos | 1,058.25 mi (1,703.09 km) |
| Ottweiler to Odemira | 1,131.52 mi (1,821.01 km) |
| Ottweiler to Odivelas | 1,087.67 mi (1,750.43 km) |
| Ottweiler to Oeiras | 1,098.10 mi (1,767.23 km) |
| Ottweiler to Olhao | 1,135.28 mi (1,827.06 km) |
| Ottweiler to Oliveira de Azemeis | 960.64 mi (1,546.00 km) |
| Ottweiler to Oliveira de Frades | 955.42 mi (1,537.60 km) |
