| Olbia to Dumas (Texas) | 5,583.88 mi (8,986.38 km) |
| Olbia to Dumont (New Jersey) | 4,173.38 mi (6,716.40 km) |
| Olbia to Duncan (Oklahoma) | 5,481.80 mi (8,822.11 km) |
| Olbia to Duncanville (Texas) | 5,527.93 mi (8,896.34 km) |
| Olbia to Dundalk (Maryland) | 4,346.41 mi (6,994.87 km) |
| Olbia to Dunedin (Florida) | 5,089.94 mi (8,191.46 km) |
| Olbia to Dunkirk (New York) | 4,354.28 mi (7,007.54 km) |
| Olbia to Dunmore (Pennsylvania) | 4,229.21 mi (6,806.26 km) |
| Olbia to Dunwoody (Georgia) | 4,912.12 mi (7,905.29 km) |
| Olbia to Durango (Colorado) | 5,742.05 mi (9,240.94 km) |
| Olbia to Durant (Oklahoma) | 5,442.90 mi (8,759.50 km) |
| Olbia to Durham (North Carolina) | 4,581.37 mi (7,373.01 km) |
| Olbia to Dyer (Indiana) | 4,739.67 mi (7,627.76 km) |
| Olbia to Dyersburg (Tennessee) | 5,049.01 mi (8,125.59 km) |
| Olbia to Eagan (Minnesota) | 4,827.64 mi (7,769.33 km) |
