| Westmont to Smithville (Missouri) | 1,363.31 mi (2,194.04 km) |
| Westmont to Smyrna (Delaware) | 2,374.14 mi (3,820.81 km) |
| Westmont to Smyrna (Georgia) | 1,928.53 mi (3,103.67 km) |
| Westmont to Smyrna (Tennessee) | 1,796.92 mi (2,891.86 km) |
| Westmont to Snellville (Georgia) | 1,957.61 mi (3,150.47 km) |
| Westmont to Snoqualmie (Washington) | 956.65 mi (1,539.58 km) |
| Westmont to Snyder (Texas) | 1,006.32 mi (1,619.51 km) |
| Westmont to Socastee (South Carolina) | 2,241.60 mi (3,607.51 km) |
| Westmont to Socorro (Texas) | 716.84 mi (1,153.64 km) |
| Westmont to Soddy-Daisy (Tennessee) | 1,877.56 mi (3,021.64 km) |
| Westmont to Solana Beach (California) | 88.93 mi (143.12 km) |
| Westmont to Soledad (California) | 243.60 mi (392.03 km) |
| Westmont to Solon (Ohio) | 2,063.98 mi (3,321.65 km) |
| Westmont to Somers Point (New Jersey) | 2,427.36 mi (3,906.46 km) |
| Westmont to Somerset (Kentucky) | 1,897.26 mi (3,053.34 km) |
