| Hertford to San Diego (California) | 5,462.60 mi (8,791.21 km) |
| Hertford to San Diego Country Estates (California) | 5,441.51 mi (8,757.27 km) |
| Hertford to San Dimas (California) | 5,411.68 mi (8,709.25 km) |
| Hertford to San Fernando (California) | 5,421.30 mi (8,724.74 km) |
| Hertford to San Francisco (California) | 5,342.77 mi (8,598.36 km) |
| Hertford to San Gabriel (California) | 5,421.70 mi (8,725.38 km) |
| Hertford to San Germán (Puerto Rico) | 4,263.81 mi (6,861.93 km) |
| Hertford to San Jacinto (California) | 5,403.18 mi (8,695.59 km) |
| Hertford to San Jose (California) | 5,351.70 mi (8,612.73 km) |
| Hertford to San Juan (Puerto Rico) | 4,205.37 mi (6,767.89 km) |
| Hertford to San Juan (Texas) | 5,140.73 mi (8,273.21 km) |
| Hertford to San Juan Capistrano (California) | 5,441.52 mi (8,757.27 km) |
| Hertford to San Leandro (California) | 5,337.24 mi (8,589.46 km) |
| Hertford to San Lorenzo (California) | 5,338.44 mi (8,591.40 km) |
| Hertford to San Luis (Arizona) | 5,402.26 mi (8,694.09 km) |
