| Madison to Montalegre | 3,983.76 mi (6,411.24 km) |
| Madison to Montemor-o-Novo | 4,080.83 mi (6,567.46 km) |
| Madison to Montemor-o-Velho | 4,003.87 mi (6,443.61 km) |
| Madison to Montijo | 4,048.52 mi (6,515.47 km) |
| Madison to Mortagua | 4,014.34 mi (6,460.45 km) |
| Madison to Moura | 4,135.09 mi (6,654.78 km) |
| Madison to Murtosa | 3,985.60 mi (6,414.20 km) |
| Madison to Nazare | 4,007.24 mi (6,449.03 km) |
| Madison to Nelas | 4,028.41 mi (6,483.10 km) |
| Madison to Obidos | 4,011.96 mi (6,456.63 km) |
| Madison to Odemira | 4,101.85 mi (6,601.28 km) |
| Madison to Odivelas | 4,031.83 mi (6,488.61 km) |
| Madison to Oeiras | 4,029.54 mi (6,484.92 km) |
| Madison to Olhao | 4,159.39 mi (6,693.89 km) |
| Madison to Oliveira de Azemeis | 3,988.81 mi (6,419.37 km) |
