| Sona to Setubal | 1,116.07 mi (1,796.14 km) |
| Sona to Sever do Vouga | 1,018.91 mi (1,639.78 km) |
| Sona to Silves | 1,146.82 mi (1,845.63 km) |
| Sona to Sines | 1,135.91 mi (1,828.07 km) |
| Sona to Sintra | 1,129.18 mi (1,817.25 km) |
| Sona to Sobrado de Paiva | 1,005.57 mi (1,618.31 km) |
| Sona to Sobral de Monte Agraco | 1,110.60 mi (1,787.33 km) |
| Sona to Soure | 1,052.24 mi (1,693.41 km) |
| Sona to Tabua | 1,014.12 mi (1,632.07 km) |
| Sona to Tavira | 1,114.69 mi (1,793.91 km) |
| Sona to Tomar | 1,056.63 mi (1,700.48 km) |
| Sona to Tondela | 1,011.91 mi (1,628.51 km) |
| Sona to Torre de Moncorvo | 946.99 mi (1,524.03 km) |
| Sona to Torres Novas | 1,066.51 mi (1,716.39 km) |
| Sona to Torres Vedras | 1,113.69 mi (1,792.31 km) |
