| Castel San Giorgio to Santiago do Cacem | 1,260.03 mi (2,027.82 km) |
| Castel San Giorgio to Santo Andre | 1,262.01 mi (2,031.01 km) |
| Castel San Giorgio to Santo Tirso | 1,203.97 mi (1,937.61 km) |
| Castel San Giorgio to Sao Bras de Alportel | 1,235.24 mi (1,987.92 km) |
| Castel San Giorgio to Sao Felix da Marinha | 1,214.35 mi (1,954.31 km) |
| Castel San Giorgio to Sao Joao da Madeira | 1,208.58 mi (1,945.02 km) |
| Castel San Giorgio to Sao Joao de Ver | 1,211.30 mi (1,949.40 km) |
| Castel San Giorgio to Sao Mamede de Infesta | 1,211.84 mi (1,950.27 km) |
| Castel San Giorgio to Sao Pedro do Sul | 1,188.00 mi (1,911.91 km) |
| Castel San Giorgio to Satao | 1,170.85 mi (1,884.31 km) |
| Castel San Giorgio to Seia | 1,172.26 mi (1,886.57 km) |
| Castel San Giorgio to Senhora da Hora | 1,214.58 mi (1,954.68 km) |
| Castel San Giorgio to Serpa | 1,203.83 mi (1,937.38 km) |
| Castel San Giorgio to Serta | 1,200.14 mi (1,931.43 km) |
| Castel San Giorgio to Sesimbra | 1,273.08 mi (2,048.82 km) |
