| Smolyan to Montemor-o-Novo | 1,740.39 mi (2,800.88 km) |
| Smolyan to Montemor-o-Velho | 1,735.95 mi (2,793.73 km) |
| Smolyan to Montijo | 1,774.91 mi (2,856.44 km) |
| Smolyan to Mortagua | 1,708.50 mi (2,749.57 km) |
| Smolyan to Moura | 1,711.71 mi (2,754.73 km) |
| Smolyan to Murtosa | 1,724.17 mi (2,774.78 km) |
| Smolyan to Nazare | 1,765.63 mi (2,841.50 km) |
| Smolyan to Nelas | 1,687.57 mi (2,715.88 km) |
| Smolyan to Obidos | 1,774.83 mi (2,856.32 km) |
| Smolyan to Odemira | 1,785.07 mi (2,872.79 km) |
| Smolyan to Odivelas | 1,787.13 mi (2,876.10 km) |
| Smolyan to Oeiras | 1,796.37 mi (2,890.97 km) |
| Smolyan to Olhao | 1,757.26 mi (2,828.04 km) |
| Smolyan to Oliveira de Azemeis | 1,714.45 mi (2,759.14 km) |
| Smolyan to Oliveira de Frades | 1,701.46 mi (2,738.24 km) |
