| Alcanar to Sesimbra | 530.70 mi (854.08 km) |
| Alcanar to Setubal | 518.31 mi (834.14 km) |
| Alcanar to Sever do Vouga | 463.87 mi (746.53 km) |
| Alcanar to Silves | 532.60 mi (857.13 km) |
| Alcanar to Sines | 530.71 mi (854.10 km) |
| Alcanar to Sintra | 538.20 mi (866.14 km) |
| Alcanar to Sobrado de Paiva | 458.66 mi (738.15 km) |
| Alcanar to Sobral de Monte Agraco | 521.94 mi (839.98 km) |
| Alcanar to Soure | 481.29 mi (774.55 km) |
| Alcanar to Tabua | 447.43 mi (720.07 km) |
| Alcanar to Tavira | 497.27 mi (800.27 km) |
| Alcanar to Tomar | 474.72 mi (763.98 km) |
| Alcanar to Tondela | 449.58 mi (723.52 km) |
| Alcanar to Torre de Moncorvo | 400.26 mi (644.16 km) |
| Alcanar to Torres Novas | 482.61 mi (776.68 km) |
