| Sioux City to Saarijarvi | 4,489.79 mi (7,225.62 km) |
| Sioux City to Salo | 4,555.56 mi (7,331.47 km) |
| Sioux City to Sastamala | 4,503.63 mi (7,247.90 km) |
| Sioux City to Savonlinna | 4,611.06 mi (7,420.78 km) |
| Sioux City to Seinajoki | 4,431.72 mi (7,132.17 km) |
| Sioux City to Siilinjarvi | 4,522.69 mi (7,278.57 km) |
| Sioux City to Sipoo | 4,606.87 mi (7,414.04 km) |
| Sioux City to Sippola | 4,628.09 mi (7,448.19 km) |
| Sioux City to Sodankyla | 4,283.06 mi (6,892.92 km) |
| Sioux City to Somero | 4,552.74 mi (7,326.92 km) |
| Sioux City to Sotkamo | 4,483.31 mi (7,215.20 km) |
| Sioux City to Tampere | 4,515.81 mi (7,267.50 km) |
| Sioux City to Tornio | 4,312.18 mi (6,939.78 km) |
| Sioux City to Turku | 4,531.75 mi (7,293.15 km) |
| Sioux City to Tuusula | 4,598.81 mi (7,401.07 km) |
