| Cantanhede to Silver Firs (Washington) | 5,112.49 mi (8,227.76 km) |
| Cantanhede to Silver Spring (Maryland) | 3,544.58 mi (5,704.44 km) |
| Cantanhede to Silver Springs Shores (Florida) | 4,122.81 mi (6,635.02 km) |
| Cantanhede to Silverdale (Washington) | 5,139.82 mi (8,271.75 km) |
| Cantanhede to Silverton (Oregon) | 5,271.08 mi (8,482.99 km) |
| Cantanhede to Simi Valley (California) | 5,632.38 mi (9,064.44 km) |
| Cantanhede to Simpsonville (South Carolina) | 3,936.55 mi (6,335.26 km) |
| Cantanhede to Sioux City (Iowa) | 4,330.78 mi (6,969.72 km) |
| Cantanhede to Sioux Falls (South Dakota) | 4,308.59 mi (6,934.01 km) |
| Cantanhede to Skokie (Illinois) | 3,959.73 mi (6,372.57 km) |
| Cantanhede to Sleepy Hollow (New York) | 3,334.46 mi (5,366.30 km) |
| Cantanhede to Slidell (Louisiana) | 4,470.45 mi (7,194.49 km) |
| Cantanhede to Smithfield (North Carolina) | 3,716.57 mi (5,981.24 km) |
| Cantanhede to Smithfield (Utah) | 5,004.61 mi (8,054.14 km) |
| Cantanhede to Smithville (Missouri) | 4,361.08 mi (7,018.49 km) |
