| Olbia to Norton Shores (Michigan) | 4,620.37 mi (7,435.77 km) |
| Olbia to Norwalk (California) | 6,286.26 mi (10,116.76 km) |
| Olbia to Norwalk (Connecticut) | 4,141.78 mi (6,665.55 km) |
| Olbia to Norwalk (Iowa) | 4,992.57 mi (8,034.76 km) |
| Olbia to Norwalk (Ohio) | 4,542.15 mi (7,309.88 km) |
| Olbia to Norwich (Connecticut) | 4,066.78 mi (6,544.85 km) |
| Olbia to Norwood (Ohio) | 4,704.32 mi (7,570.87 km) |
| Olbia to Novato (California) | 6,195.94 mi (9,971.41 km) |
| Olbia to Novi (Michigan) | 4,531.93 mi (7,293.43 km) |
| Olbia to O'Fallon (Illinois) | 4,962.36 mi (7,986.14 km) |
| Olbia to O'Fallon (Missouri) | 4,988.18 mi (8,027.70 km) |
| Olbia to Oak Creek (Wisconsin) | 4,699.42 mi (7,562.99 km) |
| Olbia to Oak Forest (Illinois) | 4,745.40 mi (7,636.99 km) |
| Olbia to Oak Grove (Oregon) | 5,779.62 mi (9,301.40 km) |
| Olbia to Oak Grove (South Carolina) | 4,764.90 mi (7,668.36 km) |
