| West Carson to Smithville (Missouri) | 1,366.07 mi (2,198.48 km) |
| West Carson to Smyrna (Delaware) | 2,376.71 mi (3,824.94 km) |
| West Carson to Smyrna (Georgia) | 1,929.40 mi (3,105.07 km) |
| West Carson to Smyrna (Tennessee) | 1,798.38 mi (2,894.22 km) |
| West Carson to Snellville (Georgia) | 1,958.50 mi (3,151.91 km) |
| West Carson to Snoqualmie (Washington) | 964.82 mi (1,552.73 km) |
| West Carson to Snyder (Texas) | 1,005.85 mi (1,618.76 km) |
| West Carson to Socastee (South Carolina) | 2,242.66 mi (3,609.22 km) |
| West Carson to Socorro (Texas) | 715.03 mi (1,150.73 km) |
| West Carson to Soddy-Daisy (Tennessee) | 1,878.83 mi (3,023.69 km) |
| West Carson to Solana Beach (California) | 82.74 mi (133.16 km) |
| West Carson to Soledad (California) | 249.91 mi (402.19 km) |
| West Carson to Solon (Ohio) | 2,067.05 mi (3,326.60 km) |
| West Carson to Somers Point (New Jersey) | 2,429.95 mi (3,910.63 km) |
| West Carson to Somerset (Kentucky) | 1,899.10 mi (3,056.31 km) |
