| Sinaia to Montalegre | 1,674.18 mi (2,694.34 km) |
| Sinaia to Montemor-o-Novo | 1,780.26 mi (2,865.05 km) |
| Sinaia to Montemor-o-Velho | 1,759.32 mi (2,831.35 km) |
| Sinaia to Montijo | 1,812.40 mi (2,916.77 km) |
| Sinaia to Mortagua | 1,730.31 mi (2,784.67 km) |
| Sinaia to Moura | 1,759.07 mi (2,830.95 km) |
| Sinaia to Murtosa | 1,741.86 mi (2,803.26 km) |
| Sinaia to Nazare | 1,793.66 mi (2,886.61 km) |
| Sinaia to Nelas | 1,709.50 mi (2,751.17 km) |
| Sinaia to Obidos | 1,805.00 mi (2,904.86 km) |
| Sinaia to Odemira | 1,833.88 mi (2,951.34 km) |
| Sinaia to Odivelas | 1,822.75 mi (2,933.43 km) |
| Sinaia to Oeiras | 1,832.61 mi (2,949.31 km) |
| Sinaia to Olhao | 1,813.95 mi (2,919.27 km) |
| Sinaia to Oliveira de Azemeis | 1,731.43 mi (2,786.47 km) |
