| Orzinuovi to Oswego (Illinois) | 4,597.61 mi (7,399.14 km) |
| Orzinuovi to Oswego (New York) | 4,047.07 mi (6,513.14 km) |
| Orzinuovi to Otsego (Minnesota) | 4,632.41 mi (7,455.14 km) |
| Orzinuovi to Ottawa (Illinois) | 4,631.56 mi (7,453.78 km) |
| Orzinuovi to Ottawa (Kansas) | 5,010.67 mi (8,063.90 km) |
| Orzinuovi to Ottumwa (Iowa) | 4,785.99 mi (7,702.31 km) |
| Orzinuovi to Overland (Missouri) | 4,814.90 mi (7,748.83 km) |
| Orzinuovi to Overland Park (Kansas) | 4,974.60 mi (8,005.84 km) |
| Orzinuovi to Overlea (Maryland) | 4,212.89 mi (6,780.00 km) |
| Orzinuovi to Oviedo (Florida) | 4,889.46 mi (7,868.83 km) |
| Orzinuovi to Owasso (Oklahoma) | 5,145.79 mi (8,281.36 km) |
| Orzinuovi to Owatonna (Minnesota) | 4,672.83 mi (7,520.20 km) |
| Orzinuovi to Owensboro (Kentucky) | 4,727.15 mi (7,607.62 km) |
| Orzinuovi to Owings Mills (Maryland) | 4,222.65 mi (6,795.70 km) |
| Orzinuovi to Owosso (Michigan) | 4,376.09 mi (7,042.64 km) |
