| Sioux City to Prokuplje | 5,377.86 mi (8,654.84 km) |
| Sioux City to Raca | 5,306.42 mi (8,539.86 km) |
| Sioux City to Raska | 5,342.29 mi (8,597.58 km) |
| Sioux City to Razanj | 5,354.37 mi (8,617.02 km) |
| Sioux City to Rekovac | 5,330.19 mi (8,578.11 km) |
| Sioux City to Ruma | 5,229.14 mi (8,415.48 km) |
| Sioux City to Sabac | 5,236.80 mi (8,427.82 km) |
| Sioux City to Secanj | 5,241.63 mi (8,435.59 km) |
| Sioux City to Senta | 5,190.61 mi (8,353.48 km) |
| Sioux City to Sid | 5,203.20 mi (8,373.75 km) |
| Sioux City to Sjenica | 5,322.55 mi (8,565.82 km) |
| Sioux City to Smederevo | 5,282.64 mi (8,501.59 km) |
| Sioux City to Smederevska Palanka | 5,298.84 mi (8,527.66 km) |
| Sioux City to Sokobanja | 5,365.77 mi (8,635.38 km) |
| Sioux City to Sombor | 5,165.91 mi (8,313.73 km) |
