| Rapid City to Romeoville (Illinois) | 783.04 mi (1,260.18 km) |
| Rapid City to Romulus (Michigan) | 1,006.48 mi (1,619.77 km) |
| Rapid City to Ronkonkoma (New York) | 1,542.38 mi (2,482.22 km) |
| Rapid City to Roosevelt (New York) | 1,522.33 mi (2,449.95 km) |
| Rapid City to Rosamond (California) | 1,019.12 mi (1,640.11 km) |
| Rapid City to Rosaryville (Maryland) | 1,409.03 mi (2,267.62 km) |
| Rapid City to Roscoe (Illinois) | 723.29 mi (1,164.02 km) |
| Rapid City to Rose Hill (Virginia) | 1,394.56 mi (2,244.33 km) |
| Rapid City to Roseburg (Oregon) | 1,005.70 mi (1,618.51 km) |
| Rapid City to Rosedale (California) | 1,036.95 mi (1,668.81 km) |
| Rapid City to Rosedale (Maryland) | 1,409.76 mi (2,268.79 km) |
| Rapid City to Roselle (Illinois) | 776.79 mi (1,250.13 km) |
| Rapid City to Roselle (New Jersey) | 1,489.37 mi (2,396.91 km) |
| Rapid City to Roselle Park (New Jersey) | 1,488.76 mi (2,395.92 km) |
| Rapid City to Rosemead (California) | 1,052.13 mi (1,693.24 km) |
