| Ciechanow to Montemor-o-Novo | 1,684.19 mi (2,710.44 km) |
| Ciechanow to Montemor-o-Velho | 1,629.70 mi (2,622.75 km) |
| Ciechanow to Montijo | 1,708.68 mi (2,749.86 km) |
| Ciechanow to Mortagua | 1,599.77 mi (2,574.57 km) |
| Ciechanow to Moura | 1,680.78 mi (2,704.95 km) |
| Ciechanow to Murtosa | 1,601.60 mi (2,577.52 km) |
| Ciechanow to Nazare | 1,671.21 mi (2,689.55 km) |
| Ciechanow to Nelas | 1,580.97 mi (2,544.33 km) |
| Ciechanow to Obidos | 1,686.20 mi (2,713.68 km) |
| Ciechanow to Odemira | 1,752.81 mi (2,820.87 km) |
| Ciechanow to Odivelas | 1,714.25 mi (2,758.82 km) |
| Ciechanow to Oeiras | 1,724.70 mi (2,775.64 km) |
| Ciechanow to Olhao | 1,751.38 mi (2,818.58 km) |
| Ciechanow to Oliveira de Azemeis | 1,590.51 mi (2,559.68 km) |
| Ciechanow to Oliveira de Frades | 1,584.73 mi (2,550.37 km) |
