| Sioux City to Sonneberg | 4,682.94 mi (7,536.46 km) |
| Sioux City to Sonsbeck | 4,466.25 mi (7,187.74 km) |
| Sioux City to Sonthofen | 4,780.34 mi (7,693.21 km) |
| Sioux City to Spaichingen | 4,700.71 mi (7,565.06 km) |
| Sioux City to Spelle | 4,471.22 mi (7,195.73 km) |
| Sioux City to Spenge | 4,515.03 mi (7,266.24 km) |
| Sioux City to Speyer | 4,635.18 mi (7,459.59 km) |
| Sioux City to Spiesen-Elversberg | 4,589.81 mi (7,386.58 km) |
| Sioux City to Spremberg | 4,732.05 mi (7,615.50 km) |
| Sioux City to Springe | 4,546.71 mi (7,317.23 km) |
| Sioux City to Sprockhovel | 4,506.23 mi (7,252.07 km) |
| Sioux City to Stade | 4,484.50 mi (7,217.10 km) |
| Sioux City to Stadtallendorf | 4,589.15 mi (7,385.53 km) |
| Sioux City to Stadthagen | 4,530.74 mi (7,291.51 km) |
| Sioux City to Stadtlohn | 4,468.44 mi (7,191.27 km) |
