| Alexandria to Silver Firs (Washington) | 5,791.34 mi (9,320.26 km) |
| Alexandria to Silver Spring (Maryland) | 4,940.29 mi (7,950.62 km) |
| Alexandria to Silver Springs Shores (Florida) | 5,621.19 mi (9,046.43 km) |
| Alexandria to Silverdale (Washington) | 5,813.47 mi (9,355.87 km) |
| Alexandria to Silverton (Oregon) | 5,985.32 mi (9,632.44 km) |
| Alexandria to Simi Valley (California) | 6,578.37 mi (10,586.86 km) |
| Alexandria to Simpsonville (South Carolina) | 5,353.44 mi (8,615.53 km) |
| Alexandria to Sioux City (Iowa) | 5,461.77 mi (8,789.87 km) |
| Alexandria to Sioux Falls (South Dakota) | 5,416.10 mi (8,716.37 km) |
| Alexandria to Skokie (Illinois) | 5,196.08 mi (8,362.28 km) |
| Alexandria to Sleepy Hollow (New York) | 4,719.86 mi (7,595.88 km) |
| Alexandria to Slidell (Louisiana) | 5,876.05 mi (9,456.60 km) |
| Alexandria to Smithfield (North Carolina) | 5,157.82 mi (8,300.70 km) |
| Alexandria to Smithfield (Utah) | 5,941.60 mi (9,562.08 km) |
| Alexandria to Smithville (Missouri) | 5,569.18 mi (8,962.74 km) |
