| Smartno to Solofra | 360.03 mi (579.41 km) |
| Smartno to Somma Lombardo | 296.71 mi (477.51 km) |
| Smartno to Somma Vesuviana | 357.91 mi (576.00 km) |
| Smartno to Sommacampagna | 197.83 mi (318.38 km) |
| Smartno to Sona | 198.06 mi (318.74 km) |
| Smartno to Sondrio | 238.51 mi (383.85 km) |
| Smartno to Sora | 305.19 mi (491.16 km) |
| Smartno to Sorbolo | 228.65 mi (367.98 km) |
| Smartno to Soresina | 246.50 mi (396.71 km) |
| Smartno to Sorisole | 250.45 mi (403.07 km) |
| Smartno to Sorrento | 374.98 mi (603.48 km) |
| Smartno to Sorso | 479.64 mi (771.91 km) |
| Smartno to Sortino | 613.44 mi (987.24 km) |
| Smartno to Soverato Marina | 515.93 mi (830.31 km) |
| Smartno to Sovicille | 260.55 mi (419.32 km) |
