| Slough to Santarem | 933.38 mi (1,502.13 km) |
| Slough to Santiago do Cacem | 1,012.08 mi (1,628.79 km) |
| Slough to Santo Andre | 1,010.87 mi (1,626.84 km) |
| Slough to Santo Tirso | 795.84 mi (1,280.77 km) |
| Slough to Sao Bras de Alportel | 1,054.27 mi (1,696.68 km) |
| Slough to Sao Felix da Marinha | 818.01 mi (1,316.46 km) |
| Slough to Sao Joao da Madeira | 823.66 mi (1,325.55 km) |
| Slough to Sao Joao de Ver | 821.44 mi (1,321.98 km) |
| Slough to Sao Mamede de Infesta | 807.12 mi (1,298.94 km) |
| Slough to Sao Pedro do Sul | 824.07 mi (1,326.21 km) |
| Slough to Satao | 818.42 mi (1,317.12 km) |
| Slough to Seia | 837.78 mi (1,348.28 km) |
| Slough to Senhora da Hora | 809.13 mi (1,302.18 km) |
| Slough to Serpa | 997.22 mi (1,604.87 km) |
| Slough to Serta | 885.47 mi (1,425.02 km) |
