| Olbia to Hicksville (New York) | 4,158.57 mi (6,692.57 km) |
| Olbia to Hidalgo (Texas) | 5,895.76 mi (9,488.31 km) |
| Olbia to High Point (North Carolina) | 4,631.12 mi (7,453.07 km) |
| Olbia to Highland (California) | 6,243.32 mi (10,047.65 km) |
| Olbia to Highland (Illinois) | 4,945.50 mi (7,959.01 km) |
| Olbia to Highland (Indiana) | 4,735.51 mi (7,621.07 km) |
| Olbia to Highland (Utah) | 5,718.55 mi (9,203.12 km) |
| Olbia to Highland City (Florida) | 5,049.23 mi (8,125.95 km) |
| Olbia to Highland Park (Illinois) | 4,724.17 mi (7,602.82 km) |
| Olbia to Highland Park (New Jersey) | 4,208.64 mi (6,773.15 km) |
| Olbia to Highland Springs (Virginia) | 4,448.55 mi (7,159.24 km) |
| Olbia to Highland Village (Texas) | 5,513.53 mi (8,873.17 km) |
| Olbia to Highlands Ranch (Colorado) | 5,519.66 mi (8,883.03 km) |
| Olbia to Hillcrest (California) | 6,234.15 mi (10,032.89 km) |
| Olbia to Hillcrest Heights (Maryland) | 4,383.72 mi (7,054.92 km) |
