| Sint-Niklaas to Siegburg | 135.94 mi (218.77 km) |
| Sint-Niklaas to Siegen | 169.88 mi (273.39 km) |
| Sint-Niklaas to Sigmaringen | 311.38 mi (501.12 km) |
| Sint-Niklaas to Simbach am Inn | 444.16 mi (714.81 km) |
| Sint-Niklaas to Simmerath | 102.23 mi (164.52 km) |
| Sint-Niklaas to Sindelfingen | 274.90 mi (442.40 km) |
| Sint-Niklaas to Sinsheim | 248.23 mi (399.49 km) |
| Sint-Niklaas to Sinzheim | 244.37 mi (393.27 km) |
| Sint-Niklaas to Sinzig | 142.62 mi (229.53 km) |
| Sint-Niklaas to Soest | 173.74 mi (279.61 km) |
| Sint-Niklaas to Solingen | 127.80 mi (205.68 km) |
| Sint-Niklaas to Soltau | 272.56 mi (438.64 km) |
| Sint-Niklaas to Sommerda | 302.47 mi (486.78 km) |
| Sint-Niklaas to Sondershausen | 291.32 mi (468.83 km) |
| Sint-Niklaas to Sonneberg | 312.42 mi (502.80 km) |
