| Mandello del Lario to Oswego (Illinois) | 4,552.52 mi (7,326.58 km) |
| Mandello del Lario to Oswego (New York) | 4,003.01 mi (6,442.22 km) |
| Mandello del Lario to Otsego (Minnesota) | 4,586.42 mi (7,381.13 km) |
| Mandello del Lario to Ottawa (Illinois) | 4,586.48 mi (7,381.22 km) |
| Mandello del Lario to Ottawa (Kansas) | 4,965.31 mi (7,990.90 km) |
| Mandello del Lario to Ottumwa (Iowa) | 4,740.59 mi (7,629.24 km) |
| Mandello del Lario to Overland (Missouri) | 4,770.08 mi (7,676.69 km) |
| Mandello del Lario to Overland Park (Kansas) | 4,929.26 mi (7,932.88 km) |
| Mandello del Lario to Overlea (Maryland) | 4,169.92 mi (6,710.83 km) |
| Mandello del Lario to Oviedo (Florida) | 4,848.71 mi (7,803.24 km) |
| Mandello del Lario to Owasso (Oklahoma) | 5,100.69 mi (8,208.77 km) |
| Mandello del Lario to Owatonna (Minnesota) | 4,626.99 mi (7,446.42 km) |
| Mandello del Lario to Owensboro (Kentucky) | 4,682.93 mi (7,536.45 km) |
| Mandello del Lario to Owings Mills (Maryland) | 4,179.61 mi (6,726.44 km) |
| Mandello del Lario to Owosso (Michigan) | 4,331.22 mi (6,970.42 km) |
