| Olbia to Hanahan (South Carolina) | 4,753.92 mi (7,650.70 km) |
| Olbia to Hanford (California) | 6,204.17 mi (9,984.65 km) |
| Olbia to Hannibal (Missouri) | 4,976.50 mi (8,008.90 km) |
| Olbia to Hanover (Pennsylvania) | 4,348.60 mi (6,998.40 km) |
| Olbia to Hanover Park (Illinois) | 4,746.19 mi (7,638.25 km) |
| Olbia to Happy Valley (Oregon) | 5,775.00 mi (9,293.96 km) |
| Olbia to Harker Heights (Texas) | 5,634.09 mi (9,067.19 km) |
| Olbia to Harlingen (Texas) | 5,867.20 mi (9,442.35 km) |
| Olbia to Harper Woods (Michigan) | 4,509.76 mi (7,257.76 km) |
| Olbia to Harrisburg (North Carolina) | 4,688.15 mi (7,544.85 km) |
| Olbia to Harrisburg (Pennsylvania) | 4,327.18 mi (6,963.93 km) |
| Olbia to Harrison (Arkansas) | 5,201.43 mi (8,370.89 km) |
| Olbia to Harrison (New Jersey) | 4,187.69 mi (6,739.44 km) |
| Olbia to Harrison (New York) | 4,158.35 mi (6,692.21 km) |
| Olbia to Harrison (Ohio) | 4,714.86 mi (7,587.83 km) |
