| Birsfelden to Silver Firs (Washington) | 5,187.32 mi (8,348.19 km) |
| Birsfelden to Silver Spring (Maryland) | 4,084.23 mi (6,572.94 km) |
| Birsfelden to Silver Springs Shores (Florida) | 4,748.90 mi (7,642.62 km) |
| Birsfelden to Silverdale (Washington) | 5,212.07 mi (8,388.01 km) |
| Birsfelden to Silverton (Oregon) | 5,370.72 mi (8,643.34 km) |
| Birsfelden to Simi Valley (California) | 5,882.68 mi (9,467.26 km) |
| Birsfelden to Simpsonville (South Carolina) | 4,495.78 mi (7,235.26 km) |
| Birsfelden to Sioux City (Iowa) | 4,683.91 mi (7,538.03 km) |
| Birsfelden to Sioux Falls (South Dakota) | 4,645.20 mi (7,475.73 km) |
| Birsfelden to Skokie (Illinois) | 4,382.79 mi (7,053.41 km) |
| Birsfelden to Sleepy Hollow (New York) | 3,864.23 mi (6,218.87 km) |
| Birsfelden to Slidell (Louisiana) | 5,024.44 mi (8,086.06 km) |
| Birsfelden to Smithfield (North Carolina) | 4,293.85 mi (6,910.29 km) |
| Birsfelden to Smithfield (Utah) | 5,238.77 mi (8,430.98 km) |
| Birsfelden to Smithville (Missouri) | 4,768.64 mi (7,674.38 km) |
