| Northbrook to Montalegre | 3,946.65 mi (6,351.53 km) |
| Northbrook to Montemor-o-Novo | 4,038.09 mi (6,498.68 km) |
| Northbrook to Montemor-o-Velho | 3,963.28 mi (6,378.27 km) |
| Northbrook to Montijo | 4,005.30 mi (6,445.91 km) |
| Northbrook to Mortagua | 3,974.53 mi (6,396.39 km) |
| Northbrook to Moura | 4,092.13 mi (6,585.65 km) |
| Northbrook to Murtosa | 3,945.99 mi (6,350.46 km) |
| Northbrook to Nazare | 3,965.40 mi (6,381.70 km) |
| Northbrook to Nelas | 3,989.04 mi (6,419.75 km) |
| Northbrook to Obidos | 3,969.65 mi (6,388.54 km) |
| Northbrook to Odemira | 4,057.06 mi (6,529.21 km) |
| Northbrook to Odivelas | 3,988.57 mi (6,418.98 km) |
| Northbrook to Oeiras | 3,985.99 mi (6,414.84 km) |
| Northbrook to Olhao | 4,114.36 mi (6,621.42 km) |
| Northbrook to Oliveira de Azemeis | 3,949.51 mi (6,356.12 km) |
