| Castel Bolognese to Senftenberg | 507.89 mi (817.37 km) |
| Castel Bolognese to Siegburg | 496.41 mi (798.90 km) |
| Castel Bolognese to Siegen | 486.58 mi (783.07 km) |
| Castel Bolognese to Sigmaringen | 288.25 mi (463.90 km) |
| Castel Bolognese to Simbach am Inn | 279.02 mi (449.04 km) |
| Castel Bolognese to Simmerath | 504.15 mi (811.35 km) |
| Castel Bolognese to Sindelfingen | 331.56 mi (533.59 km) |
| Castel Bolognese to Sinsheim | 367.66 mi (591.69 km) |
| Castel Bolognese to Sinzheim | 352.24 mi (566.88 km) |
| Castel Bolognese to Sinzig | 479.77 mi (772.11 km) |
| Castel Bolognese to Soest | 529.36 mi (851.92 km) |
| Castel Bolognese to Solingen | 521.30 mi (838.95 km) |
| Castel Bolognese to Soltau | 605.43 mi (974.35 km) |
| Castel Bolognese to Sommerda | 474.00 mi (762.83 km) |
| Castel Bolognese to Sondershausen | 489.02 mi (786.99 km) |
