| Bombarral to Silver Firs (Washington) | 5,150.64 mi (8,289.15 km) |
| Bombarral to Silver Spring (Maryland) | 3,545.52 mi (5,705.96 km) |
| Bombarral to Silver Springs Shores (Florida) | 4,112.20 mi (6,617.95 km) |
| Bombarral to Silverdale (Washington) | 5,178.10 mi (8,333.34 km) |
| Bombarral to Silverton (Oregon) | 5,306.94 mi (8,540.70 km) |
| Bombarral to Simi Valley (California) | 5,655.09 mi (9,100.98 km) |
| Bombarral to Simpsonville (South Carolina) | 3,934.08 mi (6,331.29 km) |
| Bombarral to Sioux City (Iowa) | 4,347.86 mi (6,997.20 km) |
| Bombarral to Sioux Falls (South Dakota) | 4,327.25 mi (6,964.04 km) |
| Bombarral to Skokie (Illinois) | 3,971.33 mi (6,391.23 km) |
| Bombarral to Sleepy Hollow (New York) | 3,337.25 mi (5,370.78 km) |
| Bombarral to Slidell (Louisiana) | 4,467.08 mi (7,189.07 km) |
| Bombarral to Smithfield (North Carolina) | 3,712.75 mi (5,975.10 km) |
| Bombarral to Smithfield (Utah) | 5,030.28 mi (8,095.45 km) |
| Bombarral to Smithville (Missouri) | 4,372.96 mi (7,037.59 km) |
