| Siloam Springs to Rosemead (California) | 1,335.56 mi (2,149.37 km) |
| Siloam Springs to Rosemont (California) | 1,476.74 mi (2,376.58 km) |
| Siloam Springs to Rosemount (Minnesota) | 596.55 mi (960.06 km) |
| Siloam Springs to Rosenberg (Texas) | 464.76 mi (747.96 km) |
| Siloam Springs to Roseville (California) | 1,474.35 mi (2,372.74 km) |
| Siloam Springs to Roseville (Michigan) | 756.95 mi (1,218.19 km) |
| Siloam Springs to Roseville (Minnesota) | 614.40 mi (988.79 km) |
| Siloam Springs to Rossmoor (California) | 1,339.94 mi (2,156.42 km) |
| Siloam Springs to Rossville (Maryland) | 1,008.31 mi (1,622.71 km) |
| Siloam Springs to Roswell (Georgia) | 593.85 mi (955.71 km) |
| Siloam Springs to Roswell (New Mexico) | 599.36 mi (964.58 km) |
| Siloam Springs to Round Lake (Illinois) | 546.68 mi (879.79 km) |
| Siloam Springs to Round Lake Beach (Illinois) | 549.37 mi (884.12 km) |
| Siloam Springs to Round Rock (Texas) | 430.60 mi (692.98 km) |
| Siloam Springs to Rowland Heights (California) | 1,326.43 mi (2,134.69 km) |
