| Siklos to Somma Lombardo | 462.50 mi (744.32 km) |
| Siklos to Somma Vesuviana | 394.84 mi (635.44 km) |
| Siklos to Sommacampagna | 361.13 mi (581.19 km) |
| Siklos to Sona | 361.64 mi (582.00 km) |
| Siklos to Sondrio | 404.87 mi (651.57 km) |
| Siklos to Sora | 368.88 mi (593.65 km) |
| Siklos to Sorbolo | 387.29 mi (623.28 km) |
| Siklos to Soresina | 409.98 mi (659.80 km) |
| Siklos to Sorisole | 416.20 mi (669.81 km) |
| Siklos to Sorrento | 411.35 mi (662.00 km) |
| Siklos to Sorso | 599.87 mi (965.39 km) |
| Siklos to Sortino | 623.27 mi (1,003.05 km) |
| Siklos to Soverato Marina | 503.27 mi (809.94 km) |
| Siklos to Sovicille | 390.25 mi (628.04 km) |
| Siklos to Spello | 340.78 mi (548.43 km) |
