| Holyhead to Santarem | 991.16 mi (1,595.12 km) |
| Holyhead to Santiago do Cacem | 1,074.24 mi (1,728.83 km) |
| Holyhead to Santo Andre | 1,072.41 mi (1,725.87 km) |
| Holyhead to Santo Tirso | 846.38 mi (1,362.12 km) |
| Holyhead to Sao Bras de Alportel | 1,127.32 mi (1,814.25 km) |
| Holyhead to Sao Felix da Marinha | 868.23 mi (1,397.28 km) |
| Holyhead to Sao Joao da Madeira | 876.20 mi (1,410.11 km) |
| Holyhead to Sao Joao de Ver | 872.95 mi (1,404.87 km) |
| Holyhead to Sao Mamede de Infesta | 856.74 mi (1,378.79 km) |
| Holyhead to Sao Pedro do Sul | 882.41 mi (1,420.11 km) |
| Holyhead to Satao | 880.86 mi (1,417.61 km) |
| Holyhead to Seia | 901.92 mi (1,451.49 km) |
| Holyhead to Senhora da Hora | 858.20 mi (1,381.14 km) |
| Holyhead to Serpa | 1,070.96 mi (1,723.54 km) |
| Holyhead to Serta | 947.51 mi (1,524.88 km) |
