| Sioux City to Sucha Beskidzka | 4,983.97 mi (8,020.92 km) |
| Sioux City to Suchanino | 4,728.96 mi (7,610.52 km) |
| Sioux City to Sulechow | 4,747.13 mi (7,639.77 km) |
| Sioux City to Sulecin | 4,714.51 mi (7,587.27 km) |
| Sioux City to Sulejowek | 4,910.31 mi (7,902.38 km) |
| Sioux City to Suwalki | 4,863.99 mi (7,827.84 km) |
| Sioux City to Swarzedz | 4,776.61 mi (7,687.21 km) |
| Sioux City to Swidnica | 4,832.68 mi (7,777.45 km) |
| Sioux City to Swidnik | 5,003.67 mi (8,052.62 km) |
| Sioux City to Swidwin | 4,672.22 mi (7,519.22 km) |
| Sioux City to Swiebodzice | 4,827.15 mi (7,768.55 km) |
| Sioux City to Swiecie | 4,769.15 mi (7,675.21 km) |
| Sioux City to Swiedbodzin | 4,736.72 mi (7,623.01 km) |
| Sioux City to Swietochlowice | 4,935.90 mi (7,943.57 km) |
| Sioux City to Swinoujscie | 4,620.05 mi (7,435.25 km) |
