| Petrosani to Oswego (Illinois) | 5,096.30 mi (8,201.69 km) |
| Petrosani to Oswego (New York) | 4,578.92 mi (7,369.05 km) |
| Petrosani to Otsego (Minnesota) | 5,088.08 mi (8,188.47 km) |
| Petrosani to Ottawa (Illinois) | 5,130.09 mi (8,256.09 km) |
| Petrosani to Ottawa (Kansas) | 5,496.39 mi (8,845.59 km) |
| Petrosani to Ottumwa (Iowa) | 5,271.33 mi (8,483.38 km) |
| Petrosani to Overland (Missouri) | 5,321.38 mi (8,563.93 km) |
| Petrosani to Overland Park (Kansas) | 5,461.41 mi (8,789.30 km) |
| Petrosani to Overlea (Maryland) | 4,767.01 mi (7,671.76 km) |
| Petrosani to Oviedo (Florida) | 5,475.01 mi (8,811.18 km) |
| Petrosani to Owasso (Oklahoma) | 5,640.74 mi (9,077.90 km) |
| Petrosani to Owatonna (Minnesota) | 5,137.18 mi (8,267.49 km) |
| Petrosani to Owensboro (Kentucky) | 5,251.60 mi (8,451.63 km) |
| Petrosani to Owings Mills (Maryland) | 4,775.63 mi (7,685.64 km) |
| Petrosani to Owosso (Michigan) | 4,883.52 mi (7,859.26 km) |
