| Iona to Santarem | 4,228.11 mi (6,804.49 km) |
| Iona to Santiago do Cacem | 4,245.40 mi (6,832.31 km) |
| Iona to Santo Andre | 4,242.24 mi (6,827.23 km) |
| Iona to Santo Tirso | 4,210.42 mi (6,776.01 km) |
| Iona to Sao Bras de Alportel | 4,302.55 mi (6,924.29 km) |
| Iona to Sao Felix da Marinha | 4,206.41 mi (6,769.57 km) |
| Iona to Sao Joao da Madeira | 4,215.11 mi (6,783.56 km) |
| Iona to Sao Joao de Ver | 4,211.16 mi (6,777.21 km) |
| Iona to Sao Mamede de Infesta | 4,205.38 mi (6,767.91 km) |
| Iona to Sao Pedro do Sul | 4,238.76 mi (6,821.62 km) |
| Iona to Satao | 4,256.09 mi (6,849.51 km) |
| Iona to Seia | 4,262.10 mi (6,859.18 km) |
| Iona to Senhora da Hora | 4,202.97 mi (6,764.02 km) |
| Iona to Serpa | 4,304.95 mi (6,928.14 km) |
| Iona to Serta | 4,250.49 mi (6,840.51 km) |
