| Trecastagni to Solofra | 222.60 mi (358.23 km) |
| Trecastagni to Somma Lombardo | 646.98 mi (1,041.22 km) |
| Trecastagni to Somma Vesuviana | 227.60 mi (366.28 km) |
| Trecastagni to Sommacampagna | 580.45 mi (934.14 km) |
| Trecastagni to Sona | 582.88 mi (938.06 km) |
| Trecastagni to Sondrio | 648.57 mi (1,043.77 km) |
| Trecastagni to Sora | 293.81 mi (472.84 km) |
| Trecastagni to Sorbolo | 554.30 mi (892.06 km) |
| Trecastagni to Soresina | 594.72 mi (957.11 km) |
| Trecastagni to Sorisole | 626.73 mi (1,008.62 km) |
| Trecastagni to Sorrento | 211.49 mi (340.37 km) |
| Trecastagni to Sorso | 411.71 mi (662.59 km) |
| Trecastagni to Sortino | 31.21 mi (50.23 km) |
| Trecastagni to Soverato Marina | 108.54 mi (174.68 km) |
| Trecastagni to Sovicille | 440.63 mi (709.12 km) |
