| Oskaloosa to Montalegre | 4,189.73 mi (6,742.72 km) |
| Oskaloosa to Montemor-o-Novo | 4,285.15 mi (6,896.29 km) |
| Oskaloosa to Montemor-o-Velho | 4,208.90 mi (6,773.57 km) |
| Oskaloosa to Montijo | 4,252.67 mi (6,844.01 km) |
| Oskaloosa to Mortagua | 4,219.61 mi (6,790.80 km) |
| Oskaloosa to Moura | 4,339.34 mi (6,983.49 km) |
| Oskaloosa to Murtosa | 4,190.92 mi (6,744.64 km) |
| Oskaloosa to Nazare | 4,211.87 mi (6,778.35 km) |
| Oskaloosa to Nelas | 4,233.81 mi (6,813.66 km) |
| Oskaloosa to Obidos | 4,216.43 mi (6,785.69 km) |
| Oskaloosa to Odemira | 4,305.38 mi (6,928.84 km) |
| Oskaloosa to Odivelas | 4,235.96 mi (6,817.12 km) |
| Oskaloosa to Oeiras | 4,233.56 mi (6,813.26 km) |
| Oskaloosa to Olhao | 4,362.83 mi (7,021.30 km) |
| Oskaloosa to Oliveira de Azemeis | 4,194.22 mi (6,749.95 km) |
