| Placentia to Hillcrest Heights (Maryland) | 2,281.73 mi (3,672.08 km) |
| Placentia to Hilliard (Ohio) | 1,949.30 mi (3,137.10 km) |
| Placentia to Hillsboro (Oregon) | 848.35 mi (1,365.28 km) |
| Placentia to Hillsborough (California) | 358.16 mi (576.40 km) |
| Placentia to Hillsborough (New Jersey) | 2,397.04 mi (3,857.66 km) |
| Placentia to Hilo (Hawaii) | 2,479.54 mi (3,990.43 km) |
| Placentia to Hilton Head Island (South Carolina) | 2,140.80 mi (3,445.29 km) |
| Placentia to Hinesville (Georgia) | 2,097.53 mi (3,375.65 km) |
| Placentia to Hinsdale (Illinois) | 1,712.03 mi (2,755.25 km) |
| Placentia to Hobart (Indiana) | 1,742.65 mi (2,804.52 km) |
| Placentia to Hobbs (New Mexico) | 851.59 mi (1,370.50 km) |
| Placentia to Hobe Sound (Florida) | 2,281.22 mi (3,671.27 km) |
| Placentia to Hoboken (New Jersey) | 2,428.83 mi (3,908.82 km) |
| Placentia to Hockessin (Delaware) | 2,345.67 mi (3,774.99 km) |
| Placentia to Hoffman Estates (Illinois) | 1,703.79 mi (2,741.98 km) |
