| Ruislip to Silver Firs (Washington) | 4,753.06 mi (7,649.31 km) |
| Ruislip to Silver Spring (Maryland) | 3,645.71 mi (5,867.20 km) |
| Ruislip to Silver Springs Shores (Florida) | 4,323.24 mi (6,957.58 km) |
| Ruislip to Silverdale (Washington) | 4,778.29 mi (7,689.91 km) |
| Ruislip to Silverton (Oregon) | 4,933.59 mi (7,939.84 km) |
| Ruislip to Simi Valley (California) | 5,431.44 mi (8,741.05 km) |
| Ruislip to Simpsonville (South Carolina) | 4,058.39 mi (6,531.35 km) |
| Ruislip to Sioux City (Iowa) | 4,228.84 mi (6,805.65 km) |
| Ruislip to Sioux Falls (South Dakota) | 4,190.02 mi (6,743.18 km) |
| Ruislip to Skokie (Illinois) | 3,930.60 mi (6,325.70 km) |
| Ruislip to Sleepy Hollow (New York) | 3,425.34 mi (5,512.56 km) |
| Ruislip to Slidell (Louisiana) | 4,584.03 mi (7,377.29 km) |
| Ruislip to Smithfield (North Carolina) | 3,860.65 mi (6,213.12 km) |
| Ruislip to Smithfield (Utah) | 4,787.49 mi (7,704.72 km) |
| Ruislip to Smithville (Missouri) | 4,315.00 mi (6,944.32 km) |
