| Sioux City to Recica | 4,997.55 mi (8,042.78 km) |
| Sioux City to Ribnica | 5,018.91 mi (8,077.16 km) |
| Sioux City to Ribnica | 4,999.38 mi (8,045.72 km) |
| Sioux City to Rogaska Slatina | 5,026.57 mi (8,089.48 km) |
| Sioux City to Rogasovci | 5,012.32 mi (8,066.56 km) |
| Sioux City to Rogatec | 5,029.21 mi (8,093.73 km) |
| Sioux City to Ruse | 5,007.57 mi (8,058.91 km) |
| Sioux City to Salovci | 5,020.27 mi (8,079.34 km) |
| Sioux City to Selnica ob Dravi | 5,006.25 mi (8,056.78 km) |
| Sioux City to Semic | 5,038.54 mi (8,108.75 km) |
| Sioux City to Sempeter pri Gorici | 4,971.82 mi (8,001.37 km) |
| Sioux City to Sencur | 4,984.04 mi (8,021.03 km) |
| Sioux City to Sentilj | 5,005.20 mi (8,055.09 km) |
| Sioux City to Sentjernej | 5,035.12 mi (8,103.24 km) |
| Sioux City to Sentjur | 5,018.94 mi (8,077.21 km) |
