| Sioux City to Senftenberg | 4,723.03 mi (7,600.98 km) |
| Sioux City to Siegburg | 4,528.70 mi (7,288.24 km) |
| Sioux City to Siegen | 4,553.01 mi (7,327.36 km) |
| Sioux City to Sigmaringen | 4,717.15 mi (7,591.51 km) |
| Sioux City to Simbach am Inn | 4,840.67 mi (7,790.31 km) |
| Sioux City to Simmerath | 4,505.97 mi (7,251.66 km) |
| Sioux City to Sindelfingen | 4,681.82 mi (7,534.66 km) |
| Sioux City to Sinsheim | 4,653.96 mi (7,489.83 km) |
| Sioux City to Sinzheim | 4,650.32 mi (7,483.97 km) |
| Sioux City to Sinzig | 4,541.26 mi (7,308.46 km) |
| Sioux City to Soest | 4,526.61 mi (7,284.87 km) |
| Sioux City to Solingen | 4,509.02 mi (7,256.57 km) |
| Sioux City to Soltau | 4,522.67 mi (7,278.53 km) |
| Sioux City to Sommerda | 4,644.90 mi (7,475.24 km) |
| Sioux City to Sondershausen | 4,627.49 mi (7,447.23 km) |
