| Williamstown to Smithville (Missouri) | 1,042.27 mi (1,677.38 km) |
| Williamstown to Smyrna (Delaware) | 43.22 mi (69.56 km) |
| Williamstown to Smyrna (Georgia) | 663.10 mi (1,067.16 km) |
| Williamstown to Smyrna (Tennessee) | 679.91 mi (1,094.21 km) |
| Williamstown to Snellville (Georgia) | 641.15 mi (1,031.83 km) |
| Williamstown to Snoqualmie (Washington) | 2,368.32 mi (3,811.44 km) |
| Williamstown to Snyder (Texas) | 1,517.73 mi (2,442.54 km) |
| Williamstown to Socastee (South Carolina) | 470.75 mi (757.60 km) |
| Williamstown to Socorro (Texas) | 1,831.24 mi (2,947.09 km) |
| Williamstown to Soddy-Daisy (Tennessee) | 636.80 mi (1,024.84 km) |
| Williamstown to Solana Beach (California) | 2,375.54 mi (3,823.06 km) |
| Williamstown to Soledad (California) | 2,504.01 mi (4,029.82 km) |
| Williamstown to Solon (Ohio) | 358.91 mi (577.62 km) |
| Williamstown to Somers Point (New Jersey) | 32.39 mi (52.13 km) |
| Williamstown to Somerset (Kentucky) | 551.48 mi (887.53 km) |
