| Tortona to Solofra | 412.80 mi (664.33 km) |
| Tortona to Somma Lombardo | 55.11 mi (88.70 km) |
| Tortona to Somma Vesuviana | 395.76 mi (636.91 km) |
| Tortona to Sommacampagna | 102.82 mi (165.47 km) |
| Tortona to Sona | 102.84 mi (165.50 km) |
| Tortona to Sondrio | 100.65 mi (161.97 km) |
| Tortona to Sora | 324.34 mi (521.97 km) |
| Tortona to Sorbolo | 77.58 mi (124.86 km) |
| Tortona to Soresina | 55.44 mi (89.22 km) |
| Tortona to Sorisole | 69.79 mi (112.32 km) |
| Tortona to Sorrento | 405.97 mi (653.34 km) |
| Tortona to Sorso | 283.38 mi (456.05 km) |
| Tortona to Sortino | 622.78 mi (1,002.27 km) |
| Tortona to Soverato Marina | 583.30 mi (938.74 km) |
| Tortona to Sovicille | 161.84 mi (260.45 km) |
