| Sioux City to Redon | 4,317.32 mi (6,948.06 km) |
| Sioux City to Reims | 4,481.54 mi (7,212.35 km) |
| Sioux City to Rennes | 4,314.98 mi (6,944.29 km) |
| Sioux City to Revel | 4,647.33 mi (7,479.15 km) |
| Sioux City to Reze | 4,355.11 mi (7,008.87 km) |
| Sioux City to Riedisheim | 4,666.15 mi (7,509.44 km) |
| Sioux City to Rillieux-la-Pape | 4,658.61 mi (7,497.32 km) |
| Sioux City to Riom | 4,587.80 mi (7,383.35 km) |
| Sioux City to Riorges | 4,616.76 mi (7,429.96 km) |
| Sioux City to Ris-Orangis | 4,447.45 mi (7,157.48 km) |
| Sioux City to Rive-de-Gier | 4,660.51 mi (7,500.37 km) |
| Sioux City to Rivesaltes | 4,711.24 mi (7,582.02 km) |
| Sioux City to Rixheim | 4,667.48 mi (7,511.59 km) |
| Sioux City to Roanne | 4,618.09 mi (7,432.10 km) |
| Sioux City to Roche-la-Moliere | 4,653.46 mi (7,489.02 km) |
