| Castelfiorentino to Somma Lombardo | 182.02 mi (292.93 km) |
| Castelfiorentino to Somma Vesuviana | 258.85 mi (416.58 km) |
| Castelfiorentino to Sommacampagna | 124.50 mi (200.36 km) |
| Castelfiorentino to Sona | 126.84 mi (204.13 km) |
| Castelfiorentino to Sondrio | 185.48 mi (298.51 km) |
| Castelfiorentino to Sora | 187.23 mi (301.32 km) |
| Castelfiorentino to Sorbolo | 89.85 mi (144.60 km) |
| Castelfiorentino to Soresina | 128.74 mi (207.19 km) |
| Castelfiorentino to Sorisole | 161.11 mi (259.27 km) |
| Castelfiorentino to Sorrento | 269.51 mi (433.74 km) |
| Castelfiorentino to Sorso | 228.96 mi (368.47 km) |
| Castelfiorentino to Sortino | 493.18 mi (793.69 km) |
| Castelfiorentino to Soverato Marina | 446.77 mi (719.01 km) |
| Castelfiorentino to Sovicille | 25.65 mi (41.27 km) |
| Castelfiorentino to Spello | 95.59 mi (153.84 km) |
