| South El Monte to Smithville (Missouri) | 1,347.05 mi (2,167.87 km) |
| South El Monte to Smyrna (Delaware) | 2,357.91 mi (3,794.69 km) |
| South El Monte to Smyrna (Georgia) | 1,913.00 mi (3,078.68 km) |
| South El Monte to Smyrna (Tennessee) | 1,781.07 mi (2,866.36 km) |
| South El Monte to Snellville (Georgia) | 1,942.07 mi (3,125.46 km) |
| South El Monte to Snoqualmie (Washington) | 951.96 mi (1,532.04 km) |
| South El Monte to Snyder (Texas) | 991.84 mi (1,596.20 km) |
| South El Monte to Socastee (South Carolina) | 2,225.96 mi (3,582.34 km) |
| South El Monte to Socorro (Texas) | 703.83 mi (1,132.70 km) |
| South El Monte to Soddy-Daisy (Tennessee) | 1,861.80 mi (2,996.28 km) |
| South El Monte to Solana Beach (California) | 85.96 mi (138.34 km) |
| South El Monte to Soledad (California) | 248.79 mi (400.38 km) |
| South El Monte to Solon (Ohio) | 2,047.67 mi (3,295.41 km) |
| South El Monte to Somers Point (New Jersey) | 2,411.12 mi (3,880.33 km) |
| South El Monte to Somerset (Kentucky) | 1,881.24 mi (3,027.57 km) |
