| Civita Castellana to Oak Harbor (Washington) | 5,605.48 mi (9,021.15 km) |
| Civita Castellana to Oak Hills (Oregon) | 5,772.54 mi (9,290.01 km) |
| Civita Castellana to Oak Lawn (Illinois) | 4,801.29 mi (7,726.93 km) |
| Civita Castellana to Oak Park (California) | 6,316.34 mi (10,165.17 km) |
| Civita Castellana to Oak Park (Illinois) | 4,795.24 mi (7,717.20 km) |
| Civita Castellana to Oak Park (Michigan) | 4,584.26 mi (7,377.65 km) |
| Civita Castellana to Oak Ridge (Florida) | 5,105.51 mi (8,216.53 km) |
| Civita Castellana to Oak Ridge (New Jersey) | 4,272.91 mi (6,876.59 km) |
| Civita Castellana to Oak Ridge (Tennessee) | 4,906.64 mi (7,896.47 km) |
| Civita Castellana to Oakdale (California) | 6,173.31 mi (9,934.98 km) |
| Civita Castellana to Oakdale (Minnesota) | 4,857.42 mi (7,817.26 km) |
| Civita Castellana to Oakland (California) | 6,211.48 mi (9,996.41 km) |
| Civita Castellana to Oakland (New Jersey) | 4,261.75 mi (6,858.63 km) |
| Civita Castellana to Oakland Park (Florida) | 5,147.60 mi (8,284.25 km) |
| Civita Castellana to Oakleaf Plantation (Florida) | 5,050.00 mi (8,127.19 km) |
