| Olbia to Port Chester (New York) | 4,156.68 mi (6,689.52 km) |
| Olbia to Port Hueneme (California) | 6,310.24 mi (10,155.36 km) |
| Olbia to Port Huron (Michigan) | 4,468.27 mi (7,190.99 km) |
| Olbia to Port Lavaca (Texas) | 5,704.53 mi (9,180.55 km) |
| Olbia to Port Neches (Texas) | 5,521.87 mi (8,886.58 km) |
| Olbia to Port Orange (Florida) | 4,959.39 mi (7,981.37 km) |
| Olbia to Port Orchard (Washington) | 5,660.54 mi (9,109.75 km) |
| Olbia to Port Royal (South Carolina) | 4,810.22 mi (7,741.30 km) |
| Olbia to Port Salerno (Florida) | 5,001.90 mi (8,049.79 km) |
| Olbia to Port St. John (Florida) | 4,976.13 mi (8,008.31 km) |
| Olbia to Port St. Lucie (Florida) | 5,005.97 mi (8,056.34 km) |
| Olbia to Port Washington (New York) | 4,163.25 mi (6,700.10 km) |
| Olbia to Port Washington (Wisconsin) | 4,678.32 mi (7,529.02 km) |
| Olbia to Port Wentworth (Georgia) | 4,840.14 mi (7,789.45 km) |
| Olbia to Portage (Indiana) | 4,722.35 mi (7,599.88 km) |
