| Rancho San Diego to Smyrna (Delaware) | 2,331.34 mi (3,751.93 km) |
| Rancho San Diego to Smyrna (Georgia) | 1,864.75 mi (3,001.03 km) |
| Rancho San Diego to Smyrna (Tennessee) | 1,740.44 mi (2,800.97 km) |
| Rancho San Diego to Snellville (Georgia) | 1,894.03 mi (3,048.15 km) |
| Rancho San Diego to Snoqualmie (Washington) | 1,052.32 mi (1,693.54 km) |
| Rancho San Diego to Snyder (Texas) | 929.48 mi (1,495.85 km) |
| Rancho San Diego to Socastee (South Carolina) | 2,179.73 mi (3,507.93 km) |
| Rancho San Diego to Socorro (Texas) | 627.77 mi (1,010.30 km) |
| Rancho San Diego to Soddy-Daisy (Tennessee) | 1,818.64 mi (2,926.82 km) |
| Rancho San Diego to Solana Beach (California) | 25.31 mi (40.74 km) |
| Rancho San Diego to Soledad (California) | 357.61 mi (575.52 km) |
| Rancho San Diego to Solon (Ohio) | 2,028.67 mi (3,264.82 km) |
| Rancho San Diego to Somers Point (New Jersey) | 2,384.80 mi (3,837.96 km) |
| Rancho San Diego to Somerset (Kentucky) | 1,845.46 mi (2,969.97 km) |
| Rancho San Diego to Somerset (New Jersey) | 2,388.00 mi (3,843.12 km) |
