| Viladecans to Silver Firs (Washington) | 5,394.72 mi (8,681.96 km) |
| Viladecans to Silver Spring (Maryland) | 4,023.46 mi (6,475.13 km) |
| Viladecans to Silver Springs Shores (Florida) | 4,634.93 mi (7,459.20 km) |
| Viladecans to Silverdale (Washington) | 5,420.93 mi (8,724.15 km) |
| Viladecans to Silverton (Oregon) | 5,567.12 mi (8,959.42 km) |
| Viladecans to Simi Valley (California) | 6,003.79 mi (9,662.16 km) |
| Viladecans to Simpsonville (South Carolina) | 4,425.03 mi (7,121.39 km) |
| Viladecans to Sioux City (Iowa) | 4,739.25 mi (7,627.09 km) |
| Viladecans to Sioux Falls (South Dakota) | 4,709.64 mi (7,579.44 km) |
| Viladecans to Skokie (Illinois) | 4,395.30 mi (7,073.55 km) |
| Viladecans to Sleepy Hollow (New York) | 3,808.10 mi (6,128.54 km) |
| Viladecans to Slidell (Louisiana) | 4,959.86 mi (7,982.12 km) |
| Viladecans to Smithfield (North Carolina) | 4,210.23 mi (6,775.72 km) |
| Viladecans to Smithfield (Utah) | 5,364.16 mi (8,632.79 km) |
| Viladecans to Smithville (Missouri) | 4,793.03 mi (7,713.63 km) |
