| Siniscola to Santiago do Cacem | 997.49 mi (1,605.30 km) |
| Siniscola to Santo Andre | 999.48 mi (1,608.50 km) |
| Siniscola to Santo Tirso | 947.50 mi (1,524.85 km) |
| Siniscola to Sao Bras de Alportel | 973.10 mi (1,566.05 km) |
| Siniscola to Sao Felix da Marinha | 956.87 mi (1,539.93 km) |
| Siniscola to Sao Joao da Madeira | 950.61 mi (1,529.86 km) |
| Siniscola to Sao Joao de Ver | 953.53 mi (1,534.57 km) |
| Siniscola to Sao Mamede de Infesta | 954.91 mi (1,536.79 km) |
| Siniscola to Sao Pedro do Sul | 929.48 mi (1,495.85 km) |
| Siniscola to Satao | 912.19 mi (1,468.03 km) |
| Siniscola to Seia | 912.71 mi (1,468.86 km) |
| Siniscola to Senhora da Hora | 957.62 mi (1,541.14 km) |
| Siniscola to Serpa | 941.30 mi (1,514.88 km) |
| Siniscola to Serta | 939.27 mi (1,511.60 km) |
| Siniscola to Sesimbra | 1,010.73 mi (1,626.61 km) |
