| Melfi to Oswego (Illinois) | 5,011.97 mi (8,065.99 km) |
| Melfi to Oswego (New York) | 4,455.95 mi (7,171.16 km) |
| Melfi to Otsego (Minnesota) | 5,050.51 mi (8,128.01 km) |
| Melfi to Ottawa (Illinois) | 5,045.91 mi (8,120.61 km) |
| Melfi to Ottawa (Kansas) | 5,426.30 mi (8,732.79 km) |
| Melfi to Ottumwa (Iowa) | 5,201.84 mi (8,371.56 km) |
| Melfi to Overland (Missouri) | 5,227.82 mi (8,413.36 km) |
| Melfi to Overland Park (Kansas) | 5,390.13 mi (8,674.58 km) |
| Melfi to Overlea (Maryland) | 4,615.03 mi (7,427.17 km) |
| Melfi to Oviedo (Florida) | 5,276.08 mi (8,491.03 km) |
| Melfi to Owasso (Oklahoma) | 5,560.14 mi (8,948.18 km) |
| Melfi to Owatonna (Minnesota) | 5,090.50 mi (8,192.36 km) |
| Melfi to Owensboro (Kentucky) | 5,136.69 mi (8,266.70 km) |
| Melfi to Owings Mills (Maryland) | 4,625.15 mi (7,443.46 km) |
| Melfi to Owosso (Michigan) | 4,789.37 mi (7,707.74 km) |
