| Rancho Santa Margarita to Hagerstown (Maryland) | 2,230.80 mi (3,590.13 km) |
| Rancho Santa Margarita to Haines City (Florida) | 2,156.74 mi (3,470.94 km) |
| Rancho Santa Margarita to Halawa (Hawaii) | 2,593.16 mi (4,173.28 km) |
| Rancho Santa Margarita to Half Moon Bay (California) | 379.73 mi (611.12 km) |
| Rancho Santa Margarita to Halfway (Maryland) | 2,228.28 mi (3,586.07 km) |
| Rancho Santa Margarita to Hallandale Beach (Florida) | 2,293.71 mi (3,691.36 km) |
| Rancho Santa Margarita to Haltom City (Texas) | 1,174.39 mi (1,890.00 km) |
| Rancho Santa Margarita to Ham Lake (Minnesota) | 1,520.24 mi (2,446.58 km) |
| Rancho Santa Margarita to Hamilton (Ohio) | 1,866.14 mi (3,003.26 km) |
| Rancho Santa Margarita to Hamilton Square (New Jersey) | 2,391.50 mi (3,848.75 km) |
| Rancho Santa Margarita to Hammond (Indiana) | 1,727.19 mi (2,779.65 km) |
| Rancho Santa Margarita to Hammond (Louisiana) | 1,599.17 mi (2,573.61 km) |
| Rancho Santa Margarita to Hammonton (New Jersey) | 2,387.69 mi (3,842.61 km) |
| Rancho Santa Margarita to Hampton (Virginia) | 2,317.90 mi (3,730.31 km) |
| Rancho Santa Margarita to Hampton Bays (New York) | 2,500.74 mi (4,024.55 km) |
