| Olbia to Hormigueros (Puerto Rico) | 4,717.44 mi (7,591.99 km) |
| Olbia to Horn Lake (Mississippi) | 5,126.01 mi (8,249.52 km) |
| Olbia to Hot Springs (Arkansas) | 5,277.14 mi (8,492.73 km) |
| Olbia to Hot Springs Village (Arkansas) | 5,265.90 mi (8,474.65 km) |
| Olbia to Houma (Louisiana) | 5,393.49 mi (8,679.98 km) |
| Olbia to Houston (Texas) | 5,594.89 mi (9,004.10 km) |
| Olbia to Howard (Wisconsin) | 4,638.79 mi (7,465.42 km) |
| Olbia to Huber Heights (Ohio) | 4,661.52 mi (7,501.99 km) |
| Olbia to Hudson (Florida) | 5,071.38 mi (8,161.60 km) |
| Olbia to Hudson (Ohio) | 4,491.89 mi (7,229.00 km) |
| Olbia to Hudson (Wisconsin) | 4,804.71 mi (7,732.44 km) |
| Olbia to Hueytown (Alabama) | 5,057.20 mi (8,138.78 km) |
| Olbia to Hugo (Minnesota) | 4,804.82 mi (7,732.61 km) |
| Olbia to Humacao (Puerto Rico) | 4,649.53 mi (7,482.69 km) |
| Olbia to Humble (Texas) | 5,579.85 mi (8,979.91 km) |
