| Olbia to Myrtle Grove (North Carolina) | 4,606.68 mi (7,413.74 km) |
| Olbia to Nacogdoches (Texas) | 5,477.86 mi (8,815.77 km) |
| Olbia to Nampa (Idaho) | 5,705.03 mi (9,181.36 km) |
| Olbia to Nanakuli (Hawaii) | 8,059.36 mi (12,970.28 km) |
| Olbia to Nanticoke (Pennsylvania) | 4,254.34 mi (6,846.69 km) |
| Olbia to Nanuet (New York) | 4,169.18 mi (6,709.65 km) |
| Olbia to Napa (California) | 6,176.37 mi (9,939.91 km) |
| Olbia to Naperville (Illinois) | 4,756.68 mi (7,655.14 km) |
| Olbia to Naples (Florida) | 5,122.33 mi (8,243.60 km) |
| Olbia to Naranja (Florida) | 5,082.29 mi (8,179.15 km) |
| Olbia to Nashua (New Hampshire) | 4,000.15 mi (6,437.62 km) |
| Olbia to Nashville (Tennessee) | 4,929.80 mi (7,933.74 km) |
| Olbia to Natchez (Mississippi) | 5,336.19 mi (8,587.77 km) |
| Olbia to Natchitoches (Louisiana) | 5,403.91 mi (8,696.75 km) |
| Olbia to National City (California) | 6,320.41 mi (10,171.72 km) |
