| Iona to Arcos de Valdevez | 4,206.14 mi (6,769.12 km) |
| Iona to Arcozelo | 4,205.28 mi (6,767.75 km) |
| Iona to Arganil | 4,246.88 mi (6,834.70 km) |
| Iona to Arouca | 4,227.10 mi (6,802.87 km) |
| Iona to Arruda dos Vinhos | 4,211.76 mi (6,778.17 km) |
| Iona to Aveiro | 4,210.41 mi (6,776.00 km) |
| Iona to Aver-o-Mar | 4,194.10 mi (6,749.75 km) |
| Iona to Aves | 4,217.48 mi (6,787.38 km) |
| Iona to Azambuja | 4,221.06 mi (6,793.14 km) |
| Iona to Baiao | 4,234.74 mi (6,815.15 km) |
| Iona to Barcelos | 4,200.38 mi (6,759.86 km) |
| Iona to Barreiro | 4,216.33 mi (6,785.53 km) |
| Iona to Batalha | 4,216.24 mi (6,785.37 km) |
| Iona to Beja | 4,288.47 mi (6,901.63 km) |
| Iona to Belas | 4,203.96 mi (6,765.62 km) |
