| Rapid City to Sudbury | 4,406.45 mi (7,091.50 km) |
| Rapid City to Sunbury | 4,394.77 mi (7,072.70 km) |
| Rapid City to Sunderland | 4,216.71 mi (6,786.14 km) |
| Rapid City to Sunninghill | 4,387.86 mi (7,061.58 km) |
| Rapid City to Surbiton | 4,399.96 mi (7,081.05 km) |
| Rapid City to Sutton | 4,404.91 mi (7,089.03 km) |
| Rapid City to Sutton Coldfield | 4,299.46 mi (6,919.31 km) |
| Rapid City to Sutton in Ashfield | 4,294.55 mi (6,911.41 km) |
| Rapid City to Sutton on Hull | 4,298.18 mi (6,917.25 km) |
| Rapid City to Swadlincote | 4,299.46 mi (6,919.31 km) |
| Rapid City to Swallownest | 4,282.51 mi (6,892.03 km) |
| Rapid City to Swanage | 4,377.20 mi (7,044.42 km) |
| Rapid City to Swindon | 4,343.03 mi (6,989.43 km) |
| Rapid City to Swinton | 4,277.60 mi (6,884.14 km) |
| Rapid City to Swinton | 4,242.84 mi (6,828.19 km) |
