| Lastra a Signa to Setubal | 1,098.17 mi (1,767.34 km) |
| Lastra a Signa to Sever do Vouga | 1,014.90 mi (1,633.33 km) |
| Lastra a Signa to Silves | 1,119.46 mi (1,801.60 km) |
| Lastra a Signa to Sines | 1,114.39 mi (1,793.43 km) |
| Lastra a Signa to Sintra | 1,114.35 mi (1,793.38 km) |
| Lastra a Signa to Sobrado de Paiva | 1,003.58 mi (1,615.11 km) |
| Lastra a Signa to Sobral de Monte Agraco | 1,096.57 mi (1,764.75 km) |
| Lastra a Signa to Soure | 1,043.91 mi (1,680.01 km) |
| Lastra a Signa to Tabua | 1,006.58 mi (1,619.93 km) |
| Lastra a Signa to Tavira | 1,084.48 mi (1,745.30 km) |
| Lastra a Signa to Tomar | 1,044.62 mi (1,681.15 km) |
| Lastra a Signa to Tondela | 1,005.65 mi (1,618.44 km) |
| Lastra a Signa to Torre de Moncorvo | 943.81 mi (1,518.91 km) |
| Lastra a Signa to Torres Novas | 1,053.89 mi (1,696.07 km) |
| Lastra a Signa to Torres Vedras | 1,100.38 mi (1,770.89 km) |
