| North Palm Beach to Montalegre | 4,129.79 mi (6,646.25 km) |
| North Palm Beach to Montemor-o-Novo | 4,150.07 mi (6,678.89 km) |
| North Palm Beach to Montemor-o-Velho | 4,105.04 mi (6,606.42 km) |
| North Palm Beach to Montijo | 4,113.50 mi (6,620.04 km) |
| North Palm Beach to Mortagua | 4,124.87 mi (6,638.33 km) |
| North Palm Beach to Moura | 4,198.21 mi (6,756.37 km) |
| North Palm Beach to Murtosa | 4,100.40 mi (6,598.96 km) |
| North Palm Beach to Nazare | 4,092.43 mi (6,586.13 km) |
| North Palm Beach to Nelas | 4,143.55 mi (6,668.40 km) |
| North Palm Beach to Obidos | 4,090.83 mi (6,583.56 km) |
| North Palm Beach to Odemira | 4,143.36 mi (6,668.09 km) |
| North Palm Beach to Odivelas | 4,097.26 mi (6,593.91 km) |
| North Palm Beach to Oeiras | 4,091.47 mi (6,584.59 km) |
| North Palm Beach to Olhao | 4,194.27 mi (6,750.03 km) |
| North Palm Beach to Oliveira de Azemeis | 4,107.20 mi (6,609.90 km) |
