| Castrovillari to Oakley (California) | 6,435.99 mi (10,357.73 km) |
| Castrovillari to Oakton (Virginia) | 4,737.18 mi (7,623.76 km) |
| Castrovillari to Oakville (Missouri) | 5,311.41 mi (8,547.89 km) |
| Castrovillari to Oatfield (Oregon) | 6,018.93 mi (9,686.53 km) |
| Castrovillari to Ocala (Florida) | 5,361.47 mi (8,628.46 km) |
| Castrovillari to Ocean Acres (New Jersey) | 4,570.10 mi (7,354.86 km) |
| Castrovillari to Ocean City (New Jersey) | 4,602.36 mi (7,406.78 km) |
| Castrovillari to Ocean Pines (Maryland) | 4,660.55 mi (7,500.44 km) |
| Castrovillari to Ocean Pointe (Hawaii) | 8,196.66 mi (13,191.25 km) |
| Castrovillari to Ocean Springs (Mississippi) | 5,611.07 mi (9,030.14 km) |
| Castrovillari to Oceanside (California) | 6,581.15 mi (10,591.34 km) |
| Castrovillari to Oceanside (New York) | 4,508.36 mi (7,255.50 km) |
| Castrovillari to Ocoee (Florida) | 5,358.30 mi (8,623.34 km) |
| Castrovillari to Oconomowoc (Wisconsin) | 5,031.88 mi (8,098.03 km) |
| Castrovillari to Odenton (Maryland) | 4,703.32 mi (7,569.26 km) |
