| Aiken to Silver Firs (Washington) | 2,303.97 mi (3,707.89 km) |
| Aiken to Silver Spring (Maryland) | 459.96 mi (740.23 km) |
| Aiken to Silver Springs Shores (Florida) | 305.71 mi (491.99 km) |
| Aiken to Silverdale (Washington) | 2,325.96 mi (3,743.27 km) |
| Aiken to Silverton (Oregon) | 2,306.04 mi (3,711.22 km) |
| Aiken to Simi Valley (California) | 2,111.95 mi (3,398.86 km) |
| Aiken to Simpsonville (South Carolina) | 88.17 mi (141.90 km) |
| Aiken to Sioux City (Iowa) | 1,007.89 mi (1,622.05 km) |
| Aiken to Sioux Falls (South Dakota) | 1,062.80 mi (1,710.40 km) |
| Aiken to Skokie (Illinois) | 672.75 mi (1,082.69 km) |
| Aiken to Sleepy Hollow (New York) | 677.17 mi (1,089.80 km) |
| Aiken to Slidell (Louisiana) | 522.66 mi (841.14 km) |
| Aiken to Smithfield (North Carolina) | 236.07 mi (379.92 km) |
| Aiken to Smithfield (Utah) | 1,732.41 mi (2,788.05 km) |
| Aiken to Smithville (Missouri) | 819.63 mi (1,319.06 km) |
