| Petrila to Oswego (Illinois) | 5,096.13 mi (8,201.42 km) |
| Petrila to Oswego (New York) | 4,579.05 mi (7,369.28 km) |
| Petrila to Otsego (Minnesota) | 5,087.58 mi (8,187.67 km) |
| Petrila to Ottawa (Illinois) | 5,129.92 mi (8,255.81 km) |
| Petrila to Ottawa (Kansas) | 5,496.10 mi (8,845.12 km) |
| Petrila to Ottumwa (Iowa) | 5,271.04 mi (8,482.92 km) |
| Petrila to Overland (Missouri) | 5,321.26 mi (8,563.74 km) |
| Petrila to Overland Park (Kansas) | 5,461.13 mi (8,788.84 km) |
| Petrila to Overlea (Maryland) | 4,767.35 mi (7,672.30 km) |
| Petrila to Oviedo (Florida) | 5,475.66 mi (8,812.22 km) |
| Petrila to Owasso (Oklahoma) | 5,640.52 mi (9,077.53 km) |
| Petrila to Owatonna (Minnesota) | 5,136.74 mi (8,266.79 km) |
| Petrila to Owensboro (Kentucky) | 5,251.64 mi (8,451.69 km) |
| Petrila to Owings Mills (Maryland) | 4,775.96 mi (7,686.16 km) |
| Petrila to Owosso (Michigan) | 4,883.43 mi (7,859.12 km) |
