| Rapid City to Superior (Colorado) | 302.68 mi (487.12 km) |
| Rapid City to Superior (Wisconsin) | 569.49 mi (916.50 km) |
| Rapid City to Surprise (Arizona) | 871.61 mi (1,402.72 km) |
| Rapid City to Susanville (California) | 922.67 mi (1,484.90 km) |
| Rapid City to Sussex (Wisconsin) | 752.12 mi (1,210.42 km) |
| Rapid City to Suwanee (Georgia) | 1,234.15 mi (1,986.18 km) |
| Rapid City to Swansea (Illinois) | 784.32 mi (1,262.23 km) |
| Rapid City to Sweetwater (Florida) | 1,797.13 mi (2,892.19 km) |
| Rapid City to Sweetwater (Texas) | 815.88 mi (1,313.04 km) |
| Rapid City to Sycamore (Illinois) | 747.07 mi (1,202.30 km) |
| Rapid City to Sylacauga (Alabama) | 1,181.04 mi (1,900.70 km) |
| Rapid City to Sylvania (Ohio) | 998.63 mi (1,607.14 km) |
| Rapid City to Syosset (New York) | 1,523.39 mi (2,451.66 km) |
| Rapid City to Syracuse (New York) | 1,351.54 mi (2,175.09 km) |
| Rapid City to Syracuse (Utah) | 494.89 mi (796.45 km) |
