| Sligo to Setubal | 1,087.86 mi (1,750.75 km) |
| Sligo to Sever do Vouga | 935.08 mi (1,504.87 km) |
| Sligo to Silves | 1,180.10 mi (1,899.19 km) |
| Sligo to Sines | 1,127.19 mi (1,814.04 km) |
| Sligo to Sintra | 1,069.54 mi (1,721.26 km) |
| Sligo to Sobrado de Paiva | 914.39 mi (1,471.57 km) |
| Sligo to Sobral de Monte Agraco | 1,054.05 mi (1,696.33 km) |
| Sligo to Soure | 982.30 mi (1,580.86 km) |
| Sligo to Tabua | 961.07 mi (1,546.69 km) |
| Sligo to Tavira | 1,185.61 mi (1,908.06 km) |
| Sligo to Tomar | 1,013.38 mi (1,630.87 km) |
| Sligo to Tondela | 950.21 mi (1,529.22 km) |
| Sligo to Torre de Moncorvo | 904.95 mi (1,456.38 km) |
| Sligo to Torres Novas | 1,022.58 mi (1,645.69 km) |
| Sligo to Torres Vedras | 1,049.71 mi (1,689.35 km) |
