| Thornton to Rosemont (California) | 5,114.45 mi (8,230.91 km) |
| Thornton to Rosemount (Minnesota) | 3,869.66 mi (6,227.61 km) |
| Thornton to Rosenberg (Texas) | 4,750.86 mi (7,645.77 km) |
| Thornton to Roseville (California) | 5,100.43 mi (8,208.35 km) |
| Thornton to Roseville (Michigan) | 3,607.92 mi (5,806.39 km) |
| Thornton to Roseville (Minnesota) | 3,859.72 mi (6,211.61 km) |
| Thornton to Rossmoor (California) | 5,292.65 mi (8,517.70 km) |
| Thornton to Rossville (Maryland) | 3,506.17 mi (5,642.64 km) |
| Thornton to Roswell (Georgia) | 4,074.22 mi (6,556.82 km) |
| Thornton to Roswell (New Mexico) | 4,863.72 mi (7,827.40 km) |
| Thornton to Round Lake (Illinois) | 3,807.78 mi (6,128.04 km) |
| Thornton to Round Lake Beach (Illinois) | 3,805.16 mi (6,123.82 km) |
| Thornton to Round Rock (Texas) | 4,767.76 mi (7,672.97 km) |
| Thornton to Rowland Heights (California) | 5,276.14 mi (8,491.13 km) |
| Thornton to Rowlett (Texas) | 4,598.69 mi (7,400.88 km) |
