| Sioux City to Reichenbach/Vogtland | 4,708.54 mi (7,577.66 km) |
| Sioux City to Reinbek | 4,513.19 mi (7,263.28 km) |
| Sioux City to Reinfeld | 4,506.57 mi (7,252.62 km) |
| Sioux City to Reinheim | 4,626.80 mi (7,446.12 km) |
| Sioux City to Reiskirchen | 4,593.10 mi (7,391.88 km) |
| Sioux City to Rellingen | 4,493.29 mi (7,231.25 km) |
| Sioux City to Remagen | 4,539.11 mi (7,304.99 km) |
| Sioux City to Remscheid | 4,512.31 mi (7,261.86 km) |
| Sioux City to Rendsburg | 4,460.57 mi (7,178.59 km) |
| Sioux City to Renningen | 4,677.10 mi (7,527.07 km) |
| Sioux City to Reutlingen | 4,699.51 mi (7,563.14 km) |
| Sioux City to Rhaude | 4,440.31 mi (7,145.99 km) |
| Sioux City to Rheda-Wiedenbruck | 4,521.42 mi (7,276.52 km) |
| Sioux City to Rhede | 4,467.87 mi (7,190.34 km) |
| Sioux City to Rheinau | 4,646.24 mi (7,477.41 km) |
