| South Sioux City to Solymar | 5,072.15 mi (8,162.84 km) |
| South Sioux City to Sopron | 4,990.61 mi (8,031.61 km) |
| South Sioux City to Szarvas | 5,160.81 mi (8,305.53 km) |
| South Sioux City to Szazhalombatta | 5,086.08 mi (8,185.26 km) |
| South Sioux City to Szeged | 5,178.57 mi (8,334.11 km) |
| South Sioux City to Szeghalom | 5,172.43 mi (8,324.22 km) |
| South Sioux City to Szekesfehervar | 5,074.78 mi (8,167.07 km) |
| South Sioux City to Szekszard | 5,126.13 mi (8,249.71 km) |
| South Sioux City to Szentendre | 5,071.04 mi (8,161.05 km) |
| South Sioux City to Szentes | 5,162.27 mi (8,307.87 km) |
| South Sioux City to Szentgotthard | 5,016.11 mi (8,072.64 km) |
| South Sioux City to Szigethalom | 5,088.40 mi (8,188.99 km) |
| South Sioux City to Szigetszentmiklos | 5,088.22 mi (8,188.69 km) |
| South Sioux City to Szigetvar | 5,111.26 mi (8,225.78 km) |
| South Sioux City to Szolnok | 5,133.90 mi (8,262.21 km) |
