| La Spezia to Silver Firs (Washington) | 5,445.97 mi (8,764.45 km) |
| La Spezia to Silver Spring (Maryland) | 4,286.94 mi (6,899.17 km) |
| La Spezia to Silver Springs Shores (Florida) | 4,935.06 mi (7,942.22 km) |
| La Spezia to Silverdale (Washington) | 5,470.84 mi (8,804.46 km) |
| La Spezia to Silverton (Oregon) | 5,628.61 mi (9,058.37 km) |
| La Spezia to Simi Valley (California) | 6,131.92 mi (9,868.36 km) |
| La Spezia to Simpsonville (South Carolina) | 4,696.24 mi (7,557.86 km) |
| La Spezia to Sioux City (Iowa) | 4,919.17 mi (7,916.64 km) |
| La Spezia to Sioux Falls (South Dakota) | 4,882.37 mi (7,857.41 km) |
| La Spezia to Skokie (Illinois) | 4,607.26 mi (7,414.66 km) |
| La Spezia to Sleepy Hollow (New York) | 4,067.85 mi (6,546.58 km) |
| La Spezia to Slidell (Louisiana) | 5,227.99 mi (8,413.63 km) |
| La Spezia to Smithfield (North Carolina) | 4,489.59 mi (7,225.30 km) |
| La Spezia to Smithfield (Utah) | 5,487.99 mi (8,832.06 km) |
| La Spezia to Smithville (Missouri) | 4,996.82 mi (8,041.60 km) |
