| Marlborough to Montalegre | 3,188.74 mi (5,131.79 km) |
| Marlborough to Montemor-o-Novo | 3,259.25 mi (5,245.26 km) |
| Marlborough to Montemor-o-Velho | 3,192.31 mi (5,137.52 km) |
| Marlborough to Montijo | 3,225.03 mi (5,190.18 km) |
| Marlborough to Mortagua | 3,206.34 mi (5,160.11 km) |
| Marlborough to Moura | 3,312.25 mi (5,330.54 km) |
| Marlborough to Murtosa | 3,178.73 mi (5,115.67 km) |
| Marlborough to Nazare | 3,190.05 mi (5,133.90 km) |
| Marlborough to Nelas | 3,222.34 mi (5,185.85 km) |
| Marlborough to Obidos | 3,192.65 mi (5,138.07 km) |
| Marlborough to Odemira | 3,271.42 mi (5,264.83 km) |
| Marlborough to Odivelas | 3,208.24 mi (5,163.16 km) |
| Marlborough to Oeiras | 3,204.74 mi (5,157.53 km) |
| Marlborough to Olhao | 3,327.66 mi (5,355.35 km) |
| Marlborough to Oliveira de Azemeis | 3,183.32 mi (5,123.06 km) |
