| Sioux City to Solymar | 5,069.66 mi (8,158.82 km) |
| Sioux City to Sopron | 4,988.13 mi (8,027.61 km) |
| Sioux City to Szarvas | 5,158.31 mi (8,301.51 km) |
| Sioux City to Szazhalombatta | 5,083.59 mi (8,181.24 km) |
| Sioux City to Szeged | 5,176.08 mi (8,330.09 km) |
| Sioux City to Szeghalom | 5,169.92 mi (8,320.19 km) |
| Sioux City to Szekesfehervar | 5,072.29 mi (8,163.06 km) |
| Sioux City to Szekszard | 5,123.65 mi (8,245.71 km) |
| Sioux City to Szentendre | 5,068.54 mi (8,157.03 km) |
| Sioux City to Szentes | 5,159.78 mi (8,303.86 km) |
| Sioux City to Szentgotthard | 5,013.63 mi (8,068.66 km) |
| Sioux City to Szigethalom | 5,085.91 mi (8,184.98 km) |
| Sioux City to Szigetszentmiklos | 5,085.72 mi (8,184.68 km) |
| Sioux City to Szigetvar | 5,108.79 mi (8,221.80 km) |
| Sioux City to Szolnok | 5,131.40 mi (8,258.19 km) |
