| South Sioux City to Senftenberg | 4,725.53 mi (7,605.01 km) |
| South Sioux City to Siegburg | 4,531.17 mi (7,292.21 km) |
| South Sioux City to Siegen | 4,555.48 mi (7,331.34 km) |
| South Sioux City to Sigmaringen | 4,719.59 mi (7,595.45 km) |
| South Sioux City to Simbach am Inn | 4,843.14 mi (7,794.28 km) |
| South Sioux City to Simmerath | 4,508.43 mi (7,255.61 km) |
| South Sioux City to Sindelfingen | 4,684.27 mi (7,538.61 km) |
| South Sioux City to Sinsheim | 4,656.42 mi (7,493.78 km) |
| South Sioux City to Sinzheim | 4,652.77 mi (7,487.91 km) |
| South Sioux City to Sinzig | 4,543.73 mi (7,312.42 km) |
| South Sioux City to Soest | 4,529.08 mi (7,288.86 km) |
| South Sioux City to Solingen | 4,511.49 mi (7,260.54 km) |
| South Sioux City to Soltau | 4,525.16 mi (7,282.55 km) |
| South Sioux City to Sommerda | 4,647.38 mi (7,479.24 km) |
| South Sioux City to Sondershausen | 4,629.98 mi (7,451.23 km) |
