| Caltanissetta to Orangevale (California) | 6,454.72 mi (10,387.86 km) |
| Caltanissetta to Orchards (Washington) | 6,088.39 mi (9,798.31 km) |
| Caltanissetta to Orcutt (California) | 6,647.63 mi (10,698.32 km) |
| Caltanissetta to Oregon (Ohio) | 4,898.91 mi (7,884.04 km) |
| Caltanissetta to Oregon (Wisconsin) | 5,097.62 mi (8,203.83 km) |
| Caltanissetta to Oregon City (Oregon) | 6,110.13 mi (9,833.30 km) |
| Caltanissetta to Orem (Utah) | 6,060.12 mi (9,752.82 km) |
| Caltanissetta to Orinda (California) | 6,529.95 mi (10,508.94 km) |
| Caltanissetta to Orland Park (Illinois) | 5,088.49 mi (8,189.14 km) |
| Caltanissetta to Orlando (Florida) | 5,321.73 mi (8,564.50 km) |
| Caltanissetta to Ormond Beach (Florida) | 5,277.04 mi (8,492.57 km) |
| Caltanissetta to Oro Valley (Arizona) | 6,449.09 mi (10,378.81 km) |
| Caltanissetta to Oroville (California) | 6,418.39 mi (10,329.40 km) |
| Caltanissetta to Oshkosh (Wisconsin) | 5,019.40 mi (8,077.94 km) |
| Caltanissetta to Oskaloosa (Iowa) | 5,298.48 mi (8,527.08 km) |
