| Rapid City to Oak Grove (South Carolina) | 1,368.38 mi (2,202.20 km) |
| Rapid City to Oak Harbor (Washington) | 970.37 mi (1,561.66 km) |
| Rapid City to Oak Hills (Oregon) | 964.75 mi (1,552.61 km) |
| Rapid City to Oak Lawn (Illinois) | 798.46 mi (1,284.99 km) |
| Rapid City to Oak Park (California) | 1,074.29 mi (1,728.90 km) |
| Rapid City to Oak Park (Illinois) | 793.21 mi (1,276.55 km) |
| Rapid City to Oak Park (Michigan) | 1,011.68 mi (1,628.14 km) |
| Rapid City to Oak Ridge (Florida) | 1,614.46 mi (2,598.23 km) |
| Rapid City to Oak Ridge (New Jersey) | 1,469.36 mi (2,364.71 km) |
| Rapid City to Oak Ridge (Tennessee) | 1,143.59 mi (1,840.43 km) |
| Rapid City to Oakdale (California) | 1,015.55 mi (1,634.37 km) |
| Rapid City to Oakdale (Minnesota) | 508.78 mi (818.80 km) |
| Rapid City to Oakland (California) | 1,079.13 mi (1,736.69 km) |
| Rapid City to Oakland (New Jersey) | 1,482.10 mi (2,385.21 km) |
| Rapid City to Oakland Park (Florida) | 1,784.83 mi (2,872.40 km) |
