| Regensburg to Siegburg | 249.60 mi (401.69 km) |
| Regensburg to Siegen | 222.03 mi (357.32 km) |
| Regensburg to Sigmaringen | 146.01 mi (234.97 km) |
| Regensburg to Simbach am Inn | 67.09 mi (107.97 km) |
| Regensburg to Simmerath | 280.03 mi (450.67 km) |
| Regensburg to Sindelfingen | 141.57 mi (227.83 km) |
| Regensburg to Sinsheim | 145.55 mi (234.24 km) |
| Regensburg to Sinzheim | 178.77 mi (287.70 km) |
| Regensburg to Sinzig | 239.97 mi (386.20 km) |
| Regensburg to Soest | 248.77 mi (400.36 km) |
| Regensburg to Solingen | 266.72 mi (429.25 km) |
| Regensburg to Soltau | 290.97 mi (468.26 km) |
| Regensburg to Sommerda | 154.27 mi (248.27 km) |
| Regensburg to Sondershausen | 171.05 mi (275.28 km) |
| Regensburg to Sonneberg | 100.82 mi (162.26 km) |
