| Rancho Santa Margarita to Horizon West (Florida) | 2,149.34 mi (3,459.03 km) |
| Rancho Santa Margarita to Hormigueros (Puerto Rico) | 3,279.89 mi (5,278.47 km) |
| Rancho Santa Margarita to Horn Lake (Mississippi) | 1,570.26 mi (2,527.10 km) |
| Rancho Santa Margarita to Hot Springs (Arkansas) | 1,402.98 mi (2,257.88 km) |
| Rancho Santa Margarita to Hot Springs Village (Arkansas) | 1,406.97 mi (2,264.29 km) |
| Rancho Santa Margarita to Houma (Louisiana) | 1,602.39 mi (2,578.80 km) |
| Rancho Santa Margarita to Houston (Texas) | 1,329.53 mi (2,139.67 km) |
| Rancho Santa Margarita to Howard (Wisconsin) | 1,740.45 mi (2,800.98 km) |
| Rancho Santa Margarita to Huber Heights (Ohio) | 1,891.42 mi (3,043.94 km) |
| Rancho Santa Margarita to Hudson (Florida) | 2,089.35 mi (3,362.48 km) |
| Rancho Santa Margarita to Hudson (Ohio) | 2,036.23 mi (3,276.99 km) |
| Rancho Santa Margarita to Hudson (Wisconsin) | 1,533.74 mi (2,468.32 km) |
| Rancho Santa Margarita to Hueytown (Alabama) | 1,754.70 mi (2,823.92 km) |
| Rancho Santa Margarita to Hugo (Minnesota) | 1,528.84 mi (2,460.43 km) |
| Rancho Santa Margarita to Humacao (Puerto Rico) | 3,354.03 mi (5,397.78 km) |
