| Imperial Beach to Smyrna (Delaware) | 2,347.21 mi (3,777.46 km) |
| Imperial Beach to Smyrna (Georgia) | 1,878.72 mi (3,023.51 km) |
| Imperial Beach to Smyrna (Tennessee) | 1,755.21 mi (2,824.75 km) |
| Imperial Beach to Snellville (Georgia) | 1,908.02 mi (3,070.66 km) |
| Imperial Beach to Snoqualmie (Washington) | 1,062.87 mi (1,710.52 km) |
| Imperial Beach to Snyder (Texas) | 942.04 mi (1,516.06 km) |
| Imperial Beach to Socastee (South Carolina) | 2,193.87 mi (3,530.69 km) |
| Imperial Beach to Socorro (Texas) | 638.46 mi (1,027.50 km) |
| Imperial Beach to Soddy-Daisy (Tennessee) | 1,833.15 mi (2,950.17 km) |
| Imperial Beach to Solana Beach (California) | 30.46 mi (49.02 km) |
| Imperial Beach to Soledad (California) | 359.78 mi (579.00 km) |
| Imperial Beach to Solon (Ohio) | 2,045.06 mi (3,291.20 km) |
| Imperial Beach to Somers Point (New Jersey) | 2,400.67 mi (3,863.51 km) |
| Imperial Beach to Somerset (Kentucky) | 1,860.65 mi (2,994.42 km) |
| Imperial Beach to Somerset (New Jersey) | 2,404.15 mi (3,869.10 km) |
