| Mechernich to Oswego (Illinois) | 4,269.43 mi (6,870.99 km) |
| Mechernich to Oswego (New York) | 3,737.84 mi (6,015.47 km) |
| Mechernich to Otsego (Minnesota) | 4,284.61 mi (6,895.41 km) |
| Mechernich to Ottawa (Illinois) | 4,303.36 mi (6,925.59 km) |
| Mechernich to Ottawa (Kansas) | 4,676.64 mi (7,526.33 km) |
| Mechernich to Ottumwa (Iowa) | 4,451.41 mi (7,163.85 km) |
| Mechernich to Overland (Missouri) | 4,491.25 mi (7,227.97 km) |
| Mechernich to Overland Park (Kansas) | 4,641.04 mi (7,469.03 km) |
| Mechernich to Overlea (Maryland) | 3,920.14 mi (6,308.85 km) |
| Mechernich to Oviedo (Florida) | 4,625.48 mi (7,443.99 km) |
| Mechernich to Owasso (Oklahoma) | 4,816.53 mi (7,751.45 km) |
| Mechernich to Owatonna (Minnesota) | 4,328.64 mi (6,966.27 km) |
| Mechernich to Owensboro (Kentucky) | 4,413.96 mi (7,103.58 km) |
| Mechernich to Owings Mills (Maryland) | 3,929.00 mi (6,323.12 km) |
| Mechernich to Owosso (Michigan) | 4,052.32 mi (6,521.57 km) |
