| Rancho Santa Margarita to Hazelwood (Missouri) | 1,551.94 mi (2,497.61 km) |
| Rancho Santa Margarita to Hazleton (Pennsylvania) | 2,320.52 mi (3,734.52 km) |
| Rancho Santa Margarita to Healdsburg (California) | 452.89 mi (728.86 km) |
| Rancho Santa Margarita to Heath (Ohio) | 1,980.32 mi (3,187.02 km) |
| Rancho Santa Margarita to Heber (Utah) | 584.87 mi (941.25 km) |
| Rancho Santa Margarita to Helena (Alabama) | 1,764.39 mi (2,839.52 km) |
| Rancho Santa Margarita to Helena (Montana) | 942.40 mi (1,516.64 km) |
| Rancho Santa Margarita to Hemet (California) | 35.32 mi (56.84 km) |
| Rancho Santa Margarita to Henderson (Kentucky) | 1,700.97 mi (2,737.45 km) |
| Rancho Santa Margarita to Henderson (Nevada) | 219.46 mi (353.19 km) |
| Rancho Santa Margarita to Henderson (North Carolina) | 2,211.00 mi (3,558.25 km) |
| Rancho Santa Margarita to Henderson (Texas) | 1,324.16 mi (2,131.02 km) |
| Rancho Santa Margarita to Hendersonville (North Carolina) | 1,994.48 mi (3,209.80 km) |
| Rancho Santa Margarita to Hendersonville (Tennessee) | 1,757.33 mi (2,828.15 km) |
| Rancho Santa Margarita to Hercules (California) | 399.19 mi (642.43 km) |
