| Oleggio to Montemor-o-Novo | 985.20 mi (1,585.52 km) |
| Oleggio to Montemor-o-Velho | 951.18 mi (1,530.77 km) |
| Oleggio to Montijo | 1,014.41 mi (1,632.54 km) |
| Oleggio to Mortagua | 921.54 mi (1,483.07 km) |
| Oleggio to Moura | 972.45 mi (1,565.01 km) |
| Oleggio to Murtosa | 930.52 mi (1,497.52 km) |
| Oleggio to Nazare | 988.26 mi (1,590.45 km) |
| Oleggio to Nelas | 901.07 mi (1,450.14 km) |
| Oleggio to Obidos | 1,001.02 mi (1,610.98 km) |
| Oleggio to Odemira | 1,046.84 mi (1,684.72 km) |
| Oleggio to Odivelas | 1,022.92 mi (1,646.23 km) |
| Oleggio to Oeiras | 1,033.15 mi (1,662.69 km) |
| Oleggio to Olhao | 1,036.91 mi (1,668.74 km) |
| Oleggio to Oliveira de Azemeis | 919.80 mi (1,480.28 km) |
| Oleggio to Oliveira de Frades | 910.07 mi (1,464.61 km) |
