| Osuna to Montalegre | 348.01 mi (560.07 km) |
| Osuna to Montemor-o-Novo | 196.00 mi (315.43 km) |
| Osuna to Montemor-o-Velho | 279.97 mi (450.57 km) |
| Osuna to Montijo | 229.95 mi (370.08 km) |
| Osuna to Mortagua | 278.03 mi (447.44 km) |
| Osuna to Moura | 142.75 mi (229.73 km) |
| Osuna to Murtosa | 307.33 mi (494.61 km) |
| Osuna to Nazare | 269.86 mi (434.30 km) |
| Osuna to Nelas | 270.79 mi (435.80 km) |
| Osuna to Obidos | 264.47 mi (425.63 km) |
| Osuna to Odemira | 195.41 mi (314.48 km) |
| Osuna to Odivelas | 246.74 mi (397.09 km) |
| Osuna to Oeiras | 250.58 mi (403.26 km) |
| Osuna to Olhao | 151.66 mi (244.08 km) |
| Osuna to Oliveira de Azemeis | 308.01 mi (495.70 km) |
