| Sioux City to Skien | 4,251.62 mi (6,842.32 km) |
| Sioux City to Sogndal | 4,102.68 mi (6,602.63 km) |
| Sioux City to Sogne | 4,244.87 mi (6,831.46 km) |
| Sioux City to Sola | 4,149.64 mi (6,678.20 km) |
| Sioux City to Sortland | 4,007.53 mi (6,449.49 km) |
| Sioux City to Sorum | 4,266.80 mi (6,866.76 km) |
| Sioux City to Stange | 4,242.72 mi (6,827.99 km) |
| Sioux City to Stavanger | 4,149.92 mi (6,678.65 km) |
| Sioux City to Steinkjer | 4,108.79 mi (6,612.45 km) |
| Sioux City to Stjordal | 4,122.34 mi (6,634.26 km) |
| Sioux City to Stjordalshalsen | 4,116.15 mi (6,624.31 km) |
| Sioux City to Stokke | 4,270.72 mi (6,873.05 km) |
| Sioux City to Stord | 4,110.25 mi (6,614.81 km) |
| Sioux City to Strand | 4,155.09 mi (6,686.98 km) |
| Sioux City to Svolvaer | 4,008.85 mi (6,451.62 km) |
