| Caltanissetta to Oakley (California) | 6,508.92 mi (10,475.10 km) |
| Caltanissetta to Oakton (Virginia) | 4,729.07 mi (7,610.70 km) |
| Caltanissetta to Oakville (Missouri) | 5,323.68 mi (8,567.63 km) |
| Caltanissetta to Oatfield (Oregon) | 6,106.08 mi (9,826.78 km) |
| Caltanissetta to Ocala (Florida) | 5,333.23 mi (8,583.01 km) |
| Caltanissetta to Ocean Acres (New Jersey) | 4,560.04 mi (7,338.67 km) |
| Caltanissetta to Ocean City (New Jersey) | 4,591.26 mi (7,388.91 km) |
| Caltanissetta to Ocean Pines (Maryland) | 4,647.49 mi (7,479.42 km) |
| Caltanissetta to Ocean Pointe (Hawaii) | 8,341.32 mi (13,424.06 km) |
| Caltanissetta to Ocean Springs (Mississippi) | 5,598.75 mi (9,010.32 km) |
| Caltanissetta to Oceanside (California) | 6,635.67 mi (10,679.08 km) |
| Caltanissetta to Oceanside (New York) | 4,500.22 mi (7,242.41 km) |
| Caltanissetta to Ocoee (Florida) | 5,327.24 mi (8,573.37 km) |
| Caltanissetta to Oconomowoc (Wisconsin) | 5,054.06 mi (8,133.73 km) |
| Caltanissetta to Odenton (Maryland) | 4,694.81 mi (7,555.56 km) |
