| Melzo to Oswego (Illinois) | 4,573.32 mi (7,360.05 km) |
| Melzo to Oswego (New York) | 4,022.14 mi (6,473.02 km) |
| Melzo to Otsego (Minnesota) | 4,609.15 mi (7,417.71 km) |
| Melzo to Ottawa (Illinois) | 4,607.27 mi (7,414.68 km) |
| Melzo to Ottawa (Kansas) | 4,986.61 mi (8,025.18 km) |
| Melzo to Ottumwa (Iowa) | 4,761.98 mi (7,663.66 km) |
| Melzo to Overland (Missouri) | 4,790.40 mi (7,709.41 km) |
| Melzo to Overland Park (Kansas) | 4,950.52 mi (7,967.10 km) |
| Melzo to Overlea (Maryland) | 4,187.53 mi (6,739.18 km) |
| Melzo to Oviedo (Florida) | 4,863.64 mi (7,827.26 km) |
| Melzo to Owasso (Oklahoma) | 5,121.51 mi (8,242.27 km) |
| Melzo to Owatonna (Minnesota) | 4,649.34 mi (7,482.40 km) |
| Melzo to Owensboro (Kentucky) | 4,702.29 mi (7,567.61 km) |
| Melzo to Owings Mills (Maryland) | 4,197.31 mi (6,754.91 km) |
| Melzo to Owosso (Michigan) | 4,351.63 mi (7,003.28 km) |
