| Royal Leamington Spa to Silver Firs (Washington) | 4,685.10 mi (7,539.95 km) |
| Royal Leamington Spa to Silver Spring (Maryland) | 3,585.88 mi (5,770.91 km) |
| Royal Leamington Spa to Silver Springs Shores (Florida) | 4,266.56 mi (6,866.36 km) |
| Royal Leamington Spa to Silverdale (Washington) | 4,710.35 mi (7,580.58 km) |
| Royal Leamington Spa to Silverton (Oregon) | 4,865.50 mi (7,830.27 km) |
| Royal Leamington Spa to Simi Valley (California) | 5,363.42 mi (8,631.59 km) |
| Royal Leamington Spa to Simpsonville (South Carolina) | 3,998.78 mi (6,435.41 km) |
| Royal Leamington Spa to Sioux City (Iowa) | 4,162.54 mi (6,698.95 km) |
| Royal Leamington Spa to Sioux Falls (South Dakota) | 4,123.43 mi (6,636.02 km) |
| Royal Leamington Spa to Skokie (Illinois) | 3,866.20 mi (6,222.04 km) |
| Royal Leamington Spa to Sleepy Hollow (New York) | 3,365.47 mi (5,416.20 km) |
| Royal Leamington Spa to Slidell (Louisiana) | 4,523.48 mi (7,279.83 km) |
| Royal Leamington Spa to Smithfield (North Carolina) | 3,802.21 mi (6,119.06 km) |
| Royal Leamington Spa to Smithfield (Utah) | 4,719.47 mi (7,595.25 km) |
| Royal Leamington Spa to Smithville (Missouri) | 4,249.85 mi (6,839.47 km) |
