| Olbia to Delhi (California) | 6,178.17 mi (9,942.80 km) |
| Olbia to Delray Beach (Florida) | 5,026.23 mi (8,088.93 km) |
| Olbia to Deltona (Florida) | 4,977.53 mi (8,010.56 km) |
| Olbia to Deming (New Mexico) | 5,992.54 mi (9,644.07 km) |
| Olbia to Denison (Texas) | 5,461.48 mi (8,789.40 km) |
| Olbia to Dent (Ohio) | 4,712.06 mi (7,583.32 km) |
| Olbia to Denton (Texas) | 5,510.97 mi (8,869.05 km) |
| Olbia to Dentsville (South Carolina) | 4,752.04 mi (7,647.67 km) |
| Olbia to Denver (Colorado) | 5,505.25 mi (8,859.85 km) |
| Olbia to Depew (New York) | 4,311.46 mi (6,938.63 km) |
| Olbia to Derby (Connecticut) | 4,119.24 mi (6,629.28 km) |
| Olbia to Derby (Kansas) | 5,313.74 mi (8,551.63 km) |
| Olbia to Des Moines (Iowa) | 4,985.70 mi (8,023.70 km) |
| Olbia to Des Moines (Washington) | 5,658.49 mi (9,106.46 km) |
| Olbia to Des Plaines (Illinois) | 4,733.95 mi (7,618.56 km) |
