| Olbia to Dixon (Illinois) | 4,806.82 mi (7,735.83 km) |
| Olbia to Dobbs Ferry (New York) | 4,165.50 mi (6,703.73 km) |
| Olbia to Doctor Phillips (Florida) | 5,010.14 mi (8,063.03 km) |
| Olbia to Dodge City (Kansas) | 5,415.28 mi (8,715.05 km) |
| Olbia to Dolton (Illinois) | 4,738.02 mi (7,625.11 km) |
| Olbia to Donna (Texas) | 5,885.42 mi (9,471.66 km) |
| Olbia to Dorado (Puerto Rico) | 4,659.83 mi (7,499.28 km) |
| Olbia to Doral (Florida) | 5,066.36 mi (8,153.52 km) |
| Olbia to Doraville (Georgia) | 4,911.68 mi (7,904.58 km) |
| Olbia to Dothan (Alabama) | 5,076.99 mi (8,170.63 km) |
| Olbia to Douglas (Arizona) | 6,109.00 mi (9,831.48 km) |
| Olbia to Douglas (Georgia) | 4,946.40 mi (7,960.46 km) |
| Olbia to Douglasville (Georgia) | 4,938.58 mi (7,947.88 km) |
| Olbia to Dover (Delaware) | 4,306.18 mi (6,930.12 km) |
| Olbia to Dover (New Hampshire) | 3,958.83 mi (6,371.12 km) |
