| West Memphis to Siloam Springs (Arkansas) | 253.36 mi (407.74 km) |
| West Memphis to Silver Firs (Washington) | 1,853.37 mi (2,982.71 km) |
| West Memphis to Silver Spring (Maryland) | 772.74 mi (1,243.60 km) |
| West Memphis to Silver Springs Shores (Florida) | 634.77 mi (1,021.57 km) |
| West Memphis to Silverdale (Washington) | 1,873.41 mi (3,014.96 km) |
| West Memphis to Silverton (Oregon) | 1,836.76 mi (2,955.98 km) |
| West Memphis to Simi Valley (California) | 1,617.14 mi (2,602.54 km) |
| West Memphis to Simpsonville (South Carolina) | 450.70 mi (725.33 km) |
| West Memphis to Sioux City (Iowa) | 606.59 mi (976.21 km) |
| West Memphis to Sioux Falls (South Dakota) | 675.91 mi (1,087.77 km) |
| West Memphis to Skokie (Illinois) | 493.71 mi (794.54 km) |
| West Memphis to Sleepy Hollow (New York) | 975.72 mi (1,570.27 km) |
| West Memphis to Slidell (Louisiana) | 336.96 mi (542.29 km) |
| West Memphis to Smithfield (North Carolina) | 668.01 mi (1,075.06 km) |
| West Memphis to Smithfield (Utah) | 1,253.04 mi (2,016.57 km) |
