| Rietavas to Setubal | 1,847.52 mi (2,973.29 km) |
| Rietavas to Sever do Vouga | 1,714.31 mi (2,758.91 km) |
| Rietavas to Silves | 1,903.83 mi (3,063.92 km) |
| Rietavas to Sines | 1,876.90 mi (3,020.57 km) |
| Rietavas to Sintra | 1,850.29 mi (2,977.75 km) |
| Rietavas to Sobrado de Paiva | 1,695.55 mi (2,728.73 km) |
| Rietavas to Sobral de Monte Agraco | 1,830.54 mi (2,945.97 km) |
| Rietavas to Soure | 1,758.70 mi (2,830.35 km) |
| Rietavas to Tabua | 1,721.46 mi (2,770.43 km) |
| Rietavas to Tavira | 1,881.09 mi (3,027.32 km) |
| Rietavas to Tomar | 1,774.41 mi (2,855.64 km) |
| Rietavas to Tondela | 1,715.34 mi (2,760.57 km) |
| Rietavas to Torre de Moncorvo | 1,647.00 mi (2,650.59 km) |
| Rietavas to Torres Novas | 1,785.44 mi (2,873.38 km) |
| Rietavas to Torres Vedras | 1,831.14 mi (2,946.94 km) |
