| Sint-Pieters-Leeuw to Setubal | 1,061.85 mi (1,708.89 km) |
| Sint-Pieters-Leeuw to Sever do Vouga | 920.52 mi (1,481.43 km) |
| Sint-Pieters-Leeuw to Silves | 1,128.07 mi (1,815.45 km) |
| Sint-Pieters-Leeuw to Sines | 1,094.31 mi (1,761.12 km) |
| Sint-Pieters-Leeuw to Sintra | 1,060.81 mi (1,707.21 km) |
| Sint-Pieters-Leeuw to Sobrado de Paiva | 900.83 mi (1,449.75 km) |
| Sint-Pieters-Leeuw to Sobral de Monte Agraco | 1,041.16 mi (1,675.59 km) |
| Sint-Pieters-Leeuw to Soure | 966.89 mi (1,556.06 km) |
| Sint-Pieters-Leeuw to Tabua | 930.94 mi (1,498.20 km) |
| Sint-Pieters-Leeuw to Tavira | 1,111.36 mi (1,788.56 km) |
| Sint-Pieters-Leeuw to Tomar | 985.80 mi (1,586.48 km) |
| Sint-Pieters-Leeuw to Tondela | 923.79 mi (1,486.69 km) |
| Sint-Pieters-Leeuw to Torre de Moncorvo | 856.49 mi (1,378.39 km) |
| Sint-Pieters-Leeuw to Torres Novas | 996.91 mi (1,604.36 km) |
| Sint-Pieters-Leeuw to Torres Vedras | 1,040.93 mi (1,675.21 km) |
