| Montegranaro to Oswego (Illinois) | 4,833.83 mi (7,779.30 km) |
| Montegranaro to Oswego (New York) | 4,282.10 mi (6,891.37 km) |
| Montegranaro to Otsego (Minnesota) | 4,868.16 mi (7,834.55 km) |
| Montegranaro to Ottawa (Illinois) | 4,867.78 mi (7,833.94 km) |
| Montegranaro to Ottawa (Kansas) | 5,246.99 mi (8,444.21 km) |
| Montegranaro to Ottumwa (Iowa) | 5,022.31 mi (8,082.62 km) |
| Montegranaro to Overland (Missouri) | 5,050.91 mi (8,128.65 km) |
| Montegranaro to Overland Park (Kansas) | 5,210.91 mi (8,386.16 km) |
| Montegranaro to Overlea (Maryland) | 4,445.78 mi (7,154.79 km) |
| Montegranaro to Oviedo (Florida) | 5,116.46 mi (8,234.15 km) |
| Montegranaro to Owasso (Oklahoma) | 5,382.02 mi (8,661.53 km) |
| Montegranaro to Owatonna (Minnesota) | 4,908.86 mi (7,900.05 km) |
| Montegranaro to Owensboro (Kentucky) | 4,962.39 mi (7,986.20 km) |
| Montegranaro to Owings Mills (Maryland) | 4,455.66 mi (7,170.69 km) |
| Montegranaro to Owosso (Michigan) | 4,612.15 mi (7,422.54 km) |
