| Sioux City to Rosolini | 5,461.56 mi (8,789.53 km) |
| Sioux City to Rossano | 5,388.92 mi (8,672.64 km) |
| Sioux City to Rottofreno | 4,865.52 mi (7,830.30 km) |
| Sioux City to Rovato | 4,858.76 mi (7,819.42 km) |
| Sioux City to Roverbella | 4,900.40 mi (7,886.43 km) |
| Sioux City to Rovereto | 4,882.22 mi (7,857.17 km) |
| Sioux City to Rovigo | 4,946.13 mi (7,960.03 km) |
| Sioux City to Rozzano | 4,836.12 mi (7,782.98 km) |
| Sioux City to Rubano | 4,929.34 mi (7,933.00 km) |
| Sioux City to Rubiera | 4,929.45 mi (7,933.19 km) |
| Sioux City to Ruffano | 5,427.19 mi (8,734.22 km) |
| Sioux City to Russi | 4,987.71 mi (8,026.94 km) |
| Sioux City to Rutigliano | 5,330.72 mi (8,578.97 km) |
| Sioux City to Ruvo di Puglia | 5,306.50 mi (8,539.99 km) |
| Sioux City to Sabaudia | 5,170.08 mi (8,320.45 km) |
