| Olbia to Hilliard (Ohio) | 4,613.11 mi (7,424.08 km) |
| Olbia to Hillsboro (Oregon) | 5,781.44 mi (9,304.33 km) |
| Olbia to Hillsborough (California) | 6,220.41 mi (10,010.78 km) |
| Olbia to Hillsborough (New Jersey) | 4,218.53 mi (6,789.07 km) |
| Olbia to Hilo (Hawaii) | 8,134.05 mi (13,090.48 km) |
| Olbia to Hilton Head Island (South Carolina) | 4,819.23 mi (7,755.80 km) |
| Olbia to Hinesville (Georgia) | 4,874.90 mi (7,845.39 km) |
| Olbia to Hinsdale (Illinois) | 4,744.64 mi (7,635.75 km) |
| Olbia to Hobart (Indiana) | 4,729.16 mi (7,610.84 km) |
| Olbia to Hobbs (New Mexico) | 5,785.25 mi (9,310.46 km) |
| Olbia to Hobe Sound (Florida) | 5,002.70 mi (8,051.07 km) |
| Olbia to Hoboken (New Jersey) | 4,181.98 mi (6,730.24 km) |
| Olbia to Hockessin (Delaware) | 4,290.91 mi (6,905.55 km) |
| Olbia to Hoffman Estates (Illinois) | 4,742.90 mi (7,632.96 km) |
| Olbia to Holbrook (New York) | 4,136.93 mi (6,657.74 km) |
