| Leichlingen to Octeville | 394.99 mi (635.68 km) |
| Leichlingen to Oignies | 181.29 mi (291.76 km) |
| Leichlingen to Oissel | 289.07 mi (465.22 km) |
| Leichlingen to Olivet | 321.16 mi (516.85 km) |
| Leichlingen to Ollioules | 553.89 mi (891.41 km) |
| Leichlingen to Olonne-sur-Mer | 509.33 mi (819.68 km) |
| Leichlingen to Oloron-Sainte-Marie | 653.38 mi (1,051.52 km) |
| Leichlingen to Onet Village | 509.49 mi (819.94 km) |
| Leichlingen to Onnaing | 157.68 mi (253.76 km) |
| Leichlingen to Orange | 492.93 mi (793.29 km) |
| Leichlingen to Orchies | 170.60 mi (274.56 km) |
| Leichlingen to Orleans | 318.97 mi (513.32 km) |
| Leichlingen to Orly | 262.92 mi (423.13 km) |
| Leichlingen to Ormesson-sur-Marne | 256.00 mi (411.99 km) |
| Leichlingen to Orsay | 272.12 mi (437.94 km) |
