| Colwyn Bay to Senftenberg | 754.78 mi (1,214.70 km) |
| Colwyn Bay to Siegburg | 493.64 mi (794.44 km) |
| Colwyn Bay to Siegen | 523.78 mi (842.94 km) |
| Colwyn Bay to Sigmaringen | 668.51 mi (1,075.86 km) |
| Colwyn Bay to Simbach am Inn | 806.04 mi (1,297.20 km) |
| Colwyn Bay to Simmerath | 464.16 mi (746.99 km) |
| Colwyn Bay to Sindelfingen | 635.13 mi (1,022.15 km) |
| Colwyn Bay to Sinsheim | 610.23 mi (982.08 km) |
| Colwyn Bay to Sinzheim | 602.07 mi (968.94 km) |
| Colwyn Bay to Sinzig | 503.13 mi (809.72 km) |
| Colwyn Bay to Soest | 510.83 mi (822.09 km) |
| Colwyn Bay to Solingen | 478.81 mi (770.57 km) |
| Colwyn Bay to Soltau | 560.51 mi (902.06 km) |
| Colwyn Bay to Sommerda | 642.83 mi (1,034.54 km) |
| Colwyn Bay to Sondershausen | 628.09 mi (1,010.81 km) |
