| Langenfeld to Oswego (Illinois) | 4,261.37 mi (6,858.01 km) |
| Langenfeld to Oswego (New York) | 3,733.24 mi (6,008.07 km) |
| Langenfeld to Otsego (Minnesota) | 4,272.73 mi (6,876.30 km) |
| Langenfeld to Ottawa (Illinois) | 4,295.27 mi (6,912.57 km) |
| Langenfeld to Ottawa (Kansas) | 4,667.36 mi (7,511.39 km) |
| Langenfeld to Ottumwa (Iowa) | 4,442.10 mi (7,148.87 km) |
| Langenfeld to Overland (Missouri) | 4,483.91 mi (7,216.15 km) |
| Langenfeld to Overland Park (Kansas) | 4,631.86 mi (7,454.25 km) |
| Langenfeld to Overlea (Maryland) | 3,918.04 mi (6,305.47 km) |
| Langenfeld to Oviedo (Florida) | 4,627.13 mi (7,446.65 km) |
| Langenfeld to Owasso (Oklahoma) | 4,808.07 mi (7,737.85 km) |
| Langenfeld to Owatonna (Minnesota) | 4,317.50 mi (6,948.34 km) |
| Langenfeld to Owensboro (Kentucky) | 4,408.42 mi (7,094.66 km) |
| Langenfeld to Owings Mills (Maryland) | 3,926.76 mi (6,319.52 km) |
| Langenfeld to Owosso (Michigan) | 4,045.12 mi (6,509.99 km) |
