| Planken to Oswego (Illinois) | 4,509.89 mi (7,257.97 km) |
| Planken to Oswego (New York) | 3,966.72 mi (6,383.82 km) |
| Planken to Otsego (Minnesota) | 4,536.30 mi (7,300.47 km) |
| Planken to Ottawa (Illinois) | 4,543.85 mi (7,312.62 km) |
| Planken to Ottawa (Kansas) | 4,920.66 mi (7,919.04 km) |
| Planken to Ottumwa (Iowa) | 4,695.66 mi (7,556.94 km) |
| Planken to Overland (Missouri) | 4,729.14 mi (7,610.82 km) |
| Planken to Overland Park (Kansas) | 4,884.77 mi (7,861.28 km) |
| Planken to Overlea (Maryland) | 4,139.06 mi (6,661.17 km) |
| Planken to Oviedo (Florida) | 4,826.97 mi (7,768.26 km) |
| Planken to Owasso (Oklahoma) | 5,057.84 mi (8,139.81 km) |
| Planken to Owatonna (Minnesota) | 4,578.33 mi (7,368.11 km) |
| Planken to Owensboro (Kentucky) | 4,645.60 mi (7,476.37 km) |
| Planken to Owings Mills (Maryland) | 4,148.48 mi (6,676.33 km) |
| Planken to Owosso (Michigan) | 4,290.09 mi (6,904.23 km) |
