| Siauliai to Setubal | 1,902.29 mi (3,061.43 km) |
| Siauliai to Sever do Vouga | 1,769.49 mi (2,847.72 km) |
| Siauliai to Silves | 1,958.11 mi (3,151.27 km) |
| Siauliai to Sines | 1,931.51 mi (3,108.46 km) |
| Siauliai to Sintra | 1,905.23 mi (3,066.17 km) |
| Siauliai to Sobrado de Paiva | 1,750.78 mi (2,817.61 km) |
| Siauliai to Sobral de Monte Agraco | 1,885.49 mi (3,034.40 km) |
| Siauliai to Soure | 1,813.78 mi (2,919.00 km) |
| Siauliai to Tabua | 1,776.50 mi (2,858.99 km) |
| Siauliai to Tavira | 1,935.10 mi (3,114.24 km) |
| Siauliai to Tomar | 1,829.34 mi (2,944.04 km) |
| Siauliai to Tondela | 1,770.42 mi (2,849.22 km) |
| Siauliai to Torre de Moncorvo | 1,702.06 mi (2,739.20 km) |
| Siauliai to Torres Novas | 1,840.36 mi (2,961.77 km) |
| Siauliai to Torres Vedras | 1,886.13 mi (3,035.43 km) |
