| Olbia to Dallas (Texas) | 5,514.78 mi (8,875.19 km) |
| Olbia to Dalton (Georgia) | 4,907.57 mi (7,897.97 km) |
| Olbia to Daly City (California) | 6,216.42 mi (10,004.36 km) |
| Olbia to Damascus (Maryland) | 4,378.14 mi (7,045.94 km) |
| Olbia to Damascus (Oregon) | 5,773.94 mi (9,292.26 km) |
| Olbia to Dana Point (California) | 6,296.89 mi (10,133.86 km) |
| Olbia to Danbury (Connecticut) | 4,134.12 mi (6,653.22 km) |
| Olbia to Dania Beach (Florida) | 5,046.55 mi (8,121.64 km) |
| Olbia to Danville (California) | 6,193.87 mi (9,968.07 km) |
| Olbia to Danville (Illinois) | 4,799.74 mi (7,724.44 km) |
| Olbia to Danville (Indiana) | 4,768.40 mi (7,674.00 km) |
| Olbia to Danville (Kentucky) | 4,780.15 mi (7,692.91 km) |
| Olbia to Danville (Virginia) | 4,581.07 mi (7,372.52 km) |
| Olbia to Daphne (Alabama) | 5,217.61 mi (8,396.94 km) |
| Olbia to Darby (Pennsylvania) | 4,266.93 mi (6,866.96 km) |
