| Oristano to Oak Harbor (Washington) | 5,651.77 mi (9,095.65 km) |
| Oristano to Oak Hills (Oregon) | 5,812.52 mi (9,354.35 km) |
| Oristano to Oak Lawn (Illinois) | 4,745.22 mi (7,636.69 km) |
| Oristano to Oak Park (California) | 6,315.80 mi (10,164.30 km) |
| Oristano to Oak Park (Illinois) | 4,739.91 mi (7,628.14 km) |
| Oristano to Oak Park (Michigan) | 4,521.66 mi (7,276.91 km) |
| Oristano to Oak Ridge (Florida) | 4,988.34 mi (8,027.96 km) |
| Oristano to Oak Ridge (New Jersey) | 4,187.60 mi (6,739.29 km) |
| Oristano to Oak Ridge (Tennessee) | 4,821.87 mi (7,760.04 km) |
| Oristano to Oakdale (California) | 6,188.24 mi (9,959.01 km) |
| Oristano to Oakdale (Minnesota) | 4,824.61 mi (7,764.46 km) |
| Oristano to Oakland (California) | 6,230.52 mi (10,027.05 km) |
| Oristano to Oakland (New Jersey) | 4,175.95 mi (6,720.54 km) |
| Oristano to Oakland Park (Florida) | 5,020.07 mi (8,079.02 km) |
| Oristano to Oakleaf Plantation (Florida) | 4,939.45 mi (7,949.28 km) |
