| Iona to Montalegre | 4,238.14 mi (6,820.62 km) |
| Iona to Montemor-o-Novo | 4,261.37 mi (6,858.02 km) |
| Iona to Montemor-o-Velho | 4,215.08 mi (6,783.52 km) |
| Iona to Montijo | 4,224.88 mi (6,799.28 km) |
| Iona to Mortagua | 4,234.60 mi (6,814.94 km) |
| Iona to Moura | 4,309.84 mi (6,936.01 km) |
| Iona to Murtosa | 4,209.91 mi (6,775.20 km) |
| Iona to Nazare | 4,203.04 mi (6,764.14 km) |
| Iona to Nelas | 4,253.16 mi (6,844.79 km) |
| Iona to Obidos | 4,201.66 mi (6,761.93 km) |
| Iona to Odemira | 4,255.60 mi (6,848.72 km) |
| Iona to Odivelas | 4,208.59 mi (6,773.07 km) |
| Iona to Oeiras | 4,202.90 mi (6,763.92 km) |
| Iona to Olhao | 4,306.83 mi (6,931.18 km) |
| Iona to Oliveira de Azemeis | 4,216.59 mi (6,785.95 km) |
