| Petrovec to Oswego (Illinois) | 5,198.11 mi (8,365.55 km) |
| Petrovec to Oswego (New York) | 4,660.68 mi (7,500.64 km) |
| Petrovec to Otsego (Minnesota) | 5,211.67 mi (8,387.37 km) |
| Petrovec to Ottawa (Illinois) | 5,232.05 mi (8,420.17 km) |
| Petrovec to Ottawa (Kansas) | 5,605.78 mi (9,021.64 km) |
| Petrovec to Ottumwa (Iowa) | 5,380.55 mi (8,659.16 km) |
| Petrovec to Overland (Missouri) | 5,419.20 mi (8,721.36 km) |
| Petrovec to Overland Park (Kansas) | 5,570.17 mi (8,964.33 km) |
| Petrovec to Overlea (Maryland) | 4,834.36 mi (7,780.14 km) |
| Petrovec to Oviedo (Florida) | 5,518.47 mi (8,881.12 km) |
| Petrovec to Owasso (Oklahoma) | 5,745.43 mi (9,246.37 km) |
| Petrovec to Owatonna (Minnesota) | 5,256.72 mi (8,459.87 km) |
| Petrovec to Owensboro (Kentucky) | 5,338.78 mi (8,591.94 km) |
| Petrovec to Owings Mills (Maryland) | 4,843.77 mi (7,795.30 km) |
| Petrovec to Owosso (Michigan) | 4,980.15 mi (8,014.78 km) |
