| Melegnano to Olympia Heights (Florida) | 4,959.99 mi (7,982.33 km) |
| Melegnano to Omaha (Nebraska) | 4,890.41 mi (7,870.35 km) |
| Melegnano to On Top of the World Designated Place (Florida) | 4,891.89 mi (7,872.73 km) |
| Melegnano to Onalaska (Wisconsin) | 4,586.24 mi (7,380.85 km) |
| Melegnano to Oneida (New York) | 4,003.24 mi (6,442.60 km) |
| Melegnano to Oneonta (New York) | 4,002.54 mi (6,441.47 km) |
| Melegnano to Ontario (California) | 6,026.59 mi (9,698.86 km) |
| Melegnano to Ontario (Oregon) | 5,439.88 mi (8,754.64 km) |
| Melegnano to Opa-locka (Florida) | 4,947.97 mi (7,962.99 km) |
| Melegnano to Opelika (Alabama) | 4,863.93 mi (7,827.74 km) |
| Melegnano to Opelousas (Louisiana) | 5,252.00 mi (8,452.27 km) |
| Melegnano to Orange (California) | 6,046.99 mi (9,731.69 km) |
| Melegnano to Orange (Texas) | 5,342.37 mi (8,597.72 km) |
| Melegnano to Orange City (Florida) | 4,854.82 mi (7,813.07 km) |
| Melegnano to Orangeburg (South Carolina) | 4,629.44 mi (7,450.36 km) |
