| Salsomaggiore Terme to Silver Firs (Washington) | 5,407.52 mi (8,702.57 km) |
| Salsomaggiore Terme to Silver Spring (Maryland) | 4,270.50 mi (6,872.71 km) |
| Salsomaggiore Terme to Silver Springs Shores (Florida) | 4,923.30 mi (7,923.29 km) |
| Salsomaggiore Terme to Silverdale (Washington) | 5,432.28 mi (8,742.41 km) |
| Salsomaggiore Terme to Silverton (Oregon) | 5,590.83 mi (8,997.58 km) |
| Salsomaggiore Terme to Simi Valley (California) | 6,099.39 mi (9,816.02 km) |
| Salsomaggiore Terme to Simpsonville (South Carolina) | 4,680.52 mi (7,532.58 km) |
| Salsomaggiore Terme to Sioux City (Iowa) | 4,892.43 mi (7,873.61 km) |
| Salsomaggiore Terme to Sioux Falls (South Dakota) | 4,854.91 mi (7,813.22 km) |
| Salsomaggiore Terme to Skokie (Illinois) | 4,584.25 mi (7,377.63 km) |
| Salsomaggiore Terme to Sleepy Hollow (New York) | 4,051.10 mi (6,519.61 km) |
| Salsomaggiore Terme to Slidell (Louisiana) | 5,211.50 mi (8,387.10 km) |
| Salsomaggiore Terme to Smithfield (North Carolina) | 4,475.14 mi (7,202.05 km) |
| Salsomaggiore Terme to Smithfield (Utah) | 5,455.44 mi (8,779.68 km) |
| Salsomaggiore Terme to Smithville (Missouri) | 4,972.61 mi (8,002.65 km) |
