| West Falls Church to Siloam Springs (Arkansas) | 966.70 mi (1,555.75 km) |
| West Falls Church to Silver Firs (Washington) | 2,307.09 mi (3,712.90 km) |
| West Falls Church to Silver Spring (Maryland) | 13.10 mi (21.08 km) |
| West Falls Church to Silver Springs Shores (Florida) | 728.04 mi (1,171.67 km) |
| West Falls Church to Silverdale (Washington) | 2,332.22 mi (3,753.35 km) |
| West Falls Church to Silverton (Oregon) | 2,349.68 mi (3,781.44 km) |
| West Falls Church to Simi Valley (California) | 2,308.18 mi (3,714.66 km) |
| West Falls Church to Simpsonville (South Carolina) | 400.27 mi (644.17 km) |
| West Falls Church to Sioux City (Iowa) | 1,034.48 mi (1,664.83 km) |
| West Falls Church to Sioux Falls (South Dakota) | 1,063.13 mi (1,710.94 km) |
| West Falls Church to Skokie (Illinois) | 595.99 mi (959.16 km) |
| West Falls Church to Sleepy Hollow (New York) | 233.48 mi (375.75 km) |
| West Falls Church to Slidell (Louisiana) | 928.18 mi (1,493.76 km) |
| West Falls Church to Smithfield (North Carolina) | 240.23 mi (386.61 km) |
| West Falls Church to Smithfield (Utah) | 1,823.01 mi (2,933.86 km) |
