| Louisville to Montalegre | 3,982.18 mi (6,408.70 km) |
| Louisville to Montemor-o-Novo | 4,055.60 mi (6,526.86 km) |
| Louisville to Montemor-o-Velho | 3,987.91 mi (6,417.91 km) |
| Louisville to Montijo | 4,021.45 mi (6,471.89 km) |
| Louisville to Mortagua | 4,001.58 mi (6,439.92 km) |
| Louisville to Moura | 4,108.66 mi (6,612.25 km) |
| Louisville to Murtosa | 3,973.81 mi (6,395.24 km) |
| Louisville to Nazare | 3,986.12 mi (6,415.04 km) |
| Louisville to Nelas | 4,017.37 mi (6,465.33 km) |
| Louisville to Obidos | 3,988.86 mi (6,419.45 km) |
| Louisville to Odemira | 4,067.95 mi (6,546.73 km) |
| Louisville to Odivelas | 4,004.66 mi (6,444.87 km) |
| Louisville to Oeiras | 4,001.20 mi (6,439.30 km) |
| Louisville to Olhao | 4,124.18 mi (6,637.22 km) |
| Louisville to Oliveira de Azemeis | 3,978.25 mi (6,402.37 km) |
