| Monchengladbach to Oswego (Illinois) | 4,239.35 mi (6,822.58 km) |
| Monchengladbach to Oswego (New York) | 3,710.66 mi (5,971.73 km) |
| Monchengladbach to Otsego (Minnesota) | 4,251.57 mi (6,842.24 km) |
| Monchengladbach to Ottawa (Illinois) | 4,273.26 mi (6,877.15 km) |
| Monchengladbach to Ottawa (Kansas) | 4,645.59 mi (7,476.36 km) |
| Monchengladbach to Ottumwa (Iowa) | 4,420.34 mi (7,113.84 km) |
| Monchengladbach to Overland (Missouri) | 4,461.76 mi (7,180.51 km) |
| Monchengladbach to Overland Park (Kansas) | 4,610.07 mi (7,419.18 km) |
| Monchengladbach to Overlea (Maryland) | 3,895.18 mi (6,268.69 km) |
| Monchengladbach to Oviedo (Florida) | 4,604.05 mi (7,409.50 km) |
| Monchengladbach to Owasso (Oklahoma) | 4,786.14 mi (7,702.54 km) |
| Monchengladbach to Owatonna (Minnesota) | 4,296.15 mi (6,913.98 km) |
| Monchengladbach to Owensboro (Kentucky) | 4,385.97 mi (7,058.54 km) |
| Monchengladbach to Owings Mills (Maryland) | 3,903.92 mi (6,282.75 km) |
| Monchengladbach to Owosso (Michigan) | 4,022.94 mi (6,474.30 km) |
