| Sioux City to Rivalta di Torino | 4,791.39 mi (7,711.00 km) |
| Sioux City to Rivarolo Canavese | 4,785.56 mi (7,701.62 km) |
| Sioux City to Rivoli | 4,789.78 mi (7,708.40 km) |
| Sioux City to Rocca di Papa | 5,136.26 mi (8,266.01 km) |
| Sioux City to Rocca Priora | 5,137.33 mi (8,267.74 km) |
| Sioux City to Roccapiemonte | 5,258.24 mi (8,462.31 km) |
| Sioux City to Roccastrada | 5,019.88 mi (8,078.72 km) |
| Sioux City to Romano di Lombardia | 4,852.00 mi (7,808.55 km) |
| Sioux City to Rome | 5,121.52 mi (8,242.28 km) |
| Sioux City to Roncade | 4,941.60 mi (7,952.74 km) |
| Sioux City to Ronchi dei Legionari | 4,971.48 mi (8,000.83 km) |
| Sioux City to Ronciglione | 5,092.72 mi (8,195.93 km) |
| Sioux City to Rosa | 4,915.57 mi (7,910.85 km) |
| Sioux City to Rosarno | 5,418.29 mi (8,719.90 km) |
| Sioux City to Rosignano Marittimo | 4,975.60 mi (8,007.46 km) |
