| Mangalia to Oswego (Illinois) | 5,354.67 mi (8,617.51 km) |
| Mangalia to Oswego (New York) | 4,845.65 mi (7,798.31 km) |
| Mangalia to Otsego (Minnesota) | 5,335.41 mi (8,586.51 km) |
| Mangalia to Ottawa (Illinois) | 5,388.37 mi (8,671.74 km) |
| Mangalia to Ottawa (Kansas) | 5,750.71 mi (9,254.88 km) |
| Mangalia to Ottumwa (Iowa) | 5,526.02 mi (8,893.27 km) |
| Mangalia to Overland (Missouri) | 5,581.23 mi (8,982.13 km) |
| Mangalia to Overland Park (Kansas) | 5,716.09 mi (9,199.16 km) |
| Mangalia to Overlea (Maryland) | 5,037.89 mi (8,107.70 km) |
| Mangalia to Oviedo (Florida) | 5,750.66 mi (9,254.79 km) |
| Mangalia to Owasso (Oklahoma) | 5,897.15 mi (9,490.54 km) |
| Mangalia to Owatonna (Minnesota) | 5,386.71 mi (8,669.07 km) |
| Mangalia to Owensboro (Kentucky) | 5,515.76 mi (8,876.76 km) |
| Mangalia to Owings Mills (Maryland) | 5,046.30 mi (8,121.23 km) |
| Mangalia to Owosso (Michigan) | 5,144.37 mi (8,279.07 km) |
