| Sioux City to Srbobran | 5,200.58 mi (8,369.52 km) |
| Sioux City to Sremska Kamenica | 5,218.20 mi (8,397.88 km) |
| Sioux City to Sremska Mitrovica | 5,223.28 mi (8,406.05 km) |
| Sioux City to Sremski Karlovci | 5,222.37 mi (8,404.59 km) |
| Sioux City to Stara Pazova | 5,241.08 mi (8,434.71 km) |
| Sioux City to Subotica | 5,168.16 mi (8,317.35 km) |
| Sioux City to Surcin | 5,254.25 mi (8,455.90 km) |
| Sioux City to Surdulica | 5,425.22 mi (8,731.04 km) |
| Sioux City to Svilajnac | 5,314.48 mi (8,552.82 km) |
| Sioux City to Svrljig | 5,386.14 mi (8,668.16 km) |
| Sioux City to Temerin | 5,209.77 mi (8,384.31 km) |
| Sioux City to Titel | 5,234.29 mi (8,423.77 km) |
| Sioux City to Topola | 5,295.19 mi (8,521.79 km) |
| Sioux City to Trgoviste | 5,440.51 mi (8,755.65 km) |
| Sioux City to Trstenik | 5,338.34 mi (8,591.23 km) |
