| Rapid City to Fortuna (California) | 1,092.26 mi (1,757.83 km) |
| Rapid City to Fortuna Foothills (Arizona) | 992.06 mi (1,596.56 km) |
| Rapid City to Foster City (California) | 1,089.60 mi (1,753.54 km) |
| Rapid City to Fostoria (Ohio) | 1,024.43 mi (1,648.66 km) |
| Rapid City to Fountain (Colorado) | 379.56 mi (610.84 km) |
| Rapid City to Fountain Hills (Arizona) | 855.03 mi (1,376.05 km) |
| Rapid City to Fountain Inn (South Carolina) | 1,290.41 mi (2,076.71 km) |
| Rapid City to Fountain Valley (California) | 1,064.73 mi (1,713.52 km) |
| Rapid City to Fountainebleau (Florida) | 1,798.64 mi (2,894.64 km) |
| Rapid City to Four Corners (Oregon) | 972.82 mi (1,565.60 km) |
| Rapid City to Four Corners (Texas) | 1,078.03 mi (1,734.92 km) |
| Rapid City to Four Square Mile (Colorado) | 315.25 mi (507.35 km) |
| Rapid City to Fox Crossing (Wisconsin) | 730.08 mi (1,174.95 km) |
| Rapid City to Fox Lake (Illinois) | 764.13 mi (1,229.75 km) |
| Rapid City to Framingham (Massachusetts) | 1,595.77 mi (2,568.14 km) |
