| Frederick to Montalegre | 3,550.90 mi (5,714.61 km) |
| Frederick to Montemor-o-Novo | 3,616.54 mi (5,820.25 km) |
| Frederick to Montemor-o-Velho | 3,551.78 mi (5,716.04 km) |
| Frederick to Montijo | 3,581.94 mi (5,764.58 km) |
| Frederick to Mortagua | 3,566.44 mi (5,739.63 km) |
| Frederick to Moura | 3,669.13 mi (5,904.90 km) |
| Frederick to Murtosa | 3,539.07 mi (5,695.58 km) |
| Frederick to Nazare | 3,548.42 mi (5,710.64 km) |
| Frederick to Nelas | 3,582.74 mi (5,765.86 km) |
| Frederick to Obidos | 3,550.57 mi (5,714.08 km) |
| Frederick to Odemira | 3,626.51 mi (5,836.31 km) |
| Frederick to Odivelas | 3,565.17 mi (5,737.58 km) |
| Frederick to Oeiras | 3,561.39 mi (5,731.50 km) |
| Frederick to Olhao | 3,682.29 mi (5,926.07 km) |
| Frederick to Oliveira de Azemeis | 3,543.89 mi (5,703.34 km) |
