| Petroupoli to Oswego (Illinois) | 5,464.97 mi (8,795.02 km) |
| Petroupoli to Oswego (New York) | 4,917.91 mi (7,914.61 km) |
| Petroupoli to Otsego (Minnesota) | 5,488.26 mi (8,832.50 km) |
| Petroupoli to Ottawa (Illinois) | 5,498.92 mi (8,849.66 km) |
| Petroupoli to Ottawa (Kansas) | 5,875.75 mi (9,456.11 km) |
| Petroupoli to Ottumwa (Iowa) | 5,650.72 mi (9,093.95 km) |
| Petroupoli to Overland (Missouri) | 5,683.74 mi (9,147.09 km) |
| Petroupoli to Overland Park (Kansas) | 5,839.89 mi (9,398.40 km) |
| Petroupoli to Overlea (Maryland) | 5,082.85 mi (8,180.06 km) |
| Petroupoli to Oviedo (Florida) | 5,749.77 mi (9,253.36 km) |
| Petroupoli to Owasso (Oklahoma) | 6,012.96 mi (9,676.93 km) |
| Petroupoli to Owatonna (Minnesota) | 5,531.60 mi (8,902.25 km) |
| Petroupoli to Owensboro (Kentucky) | 5,597.80 mi (9,008.80 km) |
| Petroupoli to Owings Mills (Maryland) | 5,092.73 mi (8,195.96 km) |
| Petroupoli to Owosso (Michigan) | 5,244.73 mi (8,440.58 km) |
