| Castrovillari to Odessa (Texas) | 6,113.39 mi (9,838.56 km) |
| Castrovillari to Ogden (Utah) | 5,960.80 mi (9,592.98 km) |
| Castrovillari to Oildale (California) | 6,508.18 mi (10,473.90 km) |
| Castrovillari to Ojus (Florida) | 5,406.10 mi (8,700.27 km) |
| Castrovillari to Okemos (Michigan) | 4,885.64 mi (7,862.68 km) |
| Castrovillari to Oklahoma City (Oklahoma) | 5,742.34 mi (9,241.40 km) |
| Castrovillari to Okmulgee (Oklahoma) | 5,674.86 mi (9,132.81 km) |
| Castrovillari to Olathe (Kansas) | 5,471.73 mi (8,805.90 km) |
| Castrovillari to Old Jamestown (Missouri) | 5,292.29 mi (8,517.11 km) |
| Castrovillari to Oldsmar (Florida) | 5,435.02 mi (8,746.81 km) |
| Castrovillari to Olean (New York) | 4,661.97 mi (7,502.72 km) |
| Castrovillari to Olive Branch (Mississippi) | 5,449.87 mi (8,770.71 km) |
| Castrovillari to Olivehurst (California) | 6,367.83 mi (10,248.03 km) |
| Castrovillari to Olney (Maryland) | 4,716.92 mi (7,591.15 km) |
| Castrovillari to Olympia (Washington) | 5,929.09 mi (9,541.95 km) |
