| Langenfeld to Octeville | 392.16 mi (631.12 km) |
| Langenfeld to Oignies | 178.47 mi (287.22 km) |
| Langenfeld to Oissel | 286.41 mi (460.93 km) |
| Langenfeld to Olivet | 319.03 mi (513.43 km) |
| Langenfeld to Ollioules | 553.59 mi (890.92 km) |
| Langenfeld to Olonne-sur-Mer | 506.96 mi (815.88 km) |
| Langenfeld to Oloron-Sainte-Marie | 651.69 mi (1,048.79 km) |
| Langenfeld to Onet Village | 508.25 mi (817.96 km) |
| Langenfeld to Onnaing | 154.92 mi (249.32 km) |
| Langenfeld to Orange | 492.30 mi (792.27 km) |
| Langenfeld to Orchies | 167.79 mi (270.03 km) |
| Langenfeld to Orleans | 316.83 mi (509.88 km) |
| Langenfeld to Orly | 260.61 mi (419.41 km) |
| Langenfeld to Ormesson-sur-Marne | 253.70 mi (408.30 km) |
| Langenfeld to Orsay | 269.79 mi (434.18 km) |
