| Srem to Setubal | 1,555.45 mi (2,503.25 km) |
| Srem to Sever do Vouga | 1,429.79 mi (2,301.03 km) |
| Srem to Silves | 1,605.79 mi (2,584.27 km) |
| Srem to Sines | 1,582.68 mi (2,547.07 km) |
| Srem to Sintra | 1,560.89 mi (2,512.01 km) |
| Srem to Sobrado de Paiva | 1,412.14 mi (2,272.61 km) |
| Srem to Sobral de Monte Agraco | 1,541.23 mi (2,480.37 km) |
| Srem to Soure | 1,471.98 mi (2,368.92 km) |
| Srem to Tabua | 1,434.03 mi (2,307.85 km) |
| Srem to Tavira | 1,580.55 mi (2,543.65 km) |
| Srem to Tomar | 1,485.01 mi (2,389.90 km) |
| Srem to Tondela | 1,428.81 mi (2,299.45 km) |
| Srem to Torre de Moncorvo | 1,360.32 mi (2,189.23 km) |
| Srem to Torres Novas | 1,495.88 mi (2,407.39 km) |
| Srem to Torres Vedras | 1,542.48 mi (2,482.37 km) |
