| Civitavecchia to Setubal | 1,114.87 mi (1,794.21 km) |
| Civitavecchia to Sever do Vouga | 1,046.73 mi (1,684.56 km) |
| Civitavecchia to Silves | 1,125.88 mi (1,811.92 km) |
| Civitavecchia to Sines | 1,127.08 mi (1,813.87 km) |
| Civitavecchia to Sintra | 1,134.03 mi (1,825.05 km) |
| Civitavecchia to Sobrado de Paiva | 1,037.56 mi (1,669.79 km) |
| Civitavecchia to Sobral de Monte Agraco | 1,117.27 mi (1,798.08 km) |
| Civitavecchia to Soure | 1,071.06 mi (1,723.70 km) |
| Civitavecchia to Tabua | 1,035.01 mi (1,665.68 km) |
| Civitavecchia to Tavira | 1,088.21 mi (1,751.31 km) |
| Civitavecchia to Tomar | 1,068.03 mi (1,718.83 km) |
| Civitavecchia to Tondela | 1,035.37 mi (1,666.27 km) |
| Civitavecchia to Torre de Moncorvo | 977.46 mi (1,573.06 km) |
| Civitavecchia to Torres Novas | 1,076.55 mi (1,732.54 km) |
| Civitavecchia to Torres Vedras | 1,121.78 mi (1,805.33 km) |
