| Mobile to Silver Firs (Washington) | 2,146.87 mi (3,455.05 km) |
| Mobile to Silver Spring (Maryland) | 851.24 mi (1,369.94 km) |
| Mobile to Silver Springs Shores (Florida) | 381.07 mi (613.28 km) |
| Mobile to Silverdale (Washington) | 2,165.21 mi (3,484.57 km) |
| Mobile to Silverton (Oregon) | 2,112.51 mi (3,399.76 km) |
| Mobile to Simi Valley (California) | 1,795.90 mi (2,890.22 km) |
| Mobile to Simpsonville (South Carolina) | 440.72 mi (709.27 km) |
| Mobile to Sioux City (Iowa) | 935.57 mi (1,505.66 km) |
| Mobile to Sioux Falls (South Dakota) | 1,006.12 mi (1,619.19 km) |
| Mobile to Skokie (Illinois) | 785.02 mi (1,263.38 km) |
| Mobile to Sleepy Hollow (New York) | 1,071.45 mi (1,724.34 km) |
| Mobile to Slidell (Louisiana) | 102.82 mi (165.47 km) |
| Mobile to Smithfield (North Carolina) | 656.16 mi (1,055.98 km) |
| Mobile to Smithfield (Utah) | 1,521.86 mi (2,449.20 km) |
| Mobile to Smithville (Missouri) | 703.77 mi (1,132.61 km) |
