| Rapid City to Storm Lake (Iowa) | 414.84 mi (667.62 km) |
| Rapid City to Storrs (Connecticut) | 1,564.93 mi (2,518.52 km) |
| Rapid City to Stoughton (Wisconsin) | 705.18 mi (1,134.88 km) |
| Rapid City to Stow (Ohio) | 1,122.07 mi (1,805.80 km) |
| Rapid City to Streamwood (Illinois) | 771.51 mi (1,241.62 km) |
| Rapid City to Streator (Illinois) | 758.59 mi (1,220.84 km) |
| Rapid City to Streetsboro (Ohio) | 1,125.17 mi (1,810.78 km) |
| Rapid City to Strongsville (Ohio) | 1,099.58 mi (1,769.60 km) |
| Rapid City to Stuart (Florida) | 1,727.96 mi (2,780.89 km) |
| Rapid City to Stuarts Draft (Virginia) | 1,322.16 mi (2,127.80 km) |
| Rapid City to Sturgis (Michigan) | 912.22 mi (1,468.08 km) |
| Rapid City to Suamico (Wisconsin) | 748.52 mi (1,204.62 km) |
| Rapid City to Sudley (Virginia) | 1,375.42 mi (2,213.53 km) |
| Rapid City to Suffern (New York) | 1,485.25 mi (2,390.29 km) |
| Rapid City to Suffolk (Virginia) | 1,480.99 mi (2,383.42 km) |
