| Kortenberg to Oignies | 73.23 mi (117.86 km) |
| Kortenberg to Oissel | 185.98 mi (299.31 km) |
| Kortenberg to Olivet | 239.86 mi (386.02 km) |
| Kortenberg to Ollioules | 538.59 mi (866.78 km) |
| Kortenberg to Olonne-sur-Mer | 415.50 mi (668.68 km) |
| Kortenberg to Oloron-Sainte-Marie | 583.44 mi (938.96 km) |
| Kortenberg to Onet Village | 459.25 mi (739.10 km) |
| Kortenberg to Onnaing | 53.40 mi (85.94 km) |
| Kortenberg to Orange | 466.21 mi (750.30 km) |
| Kortenberg to Orchies | 63.11 mi (101.56 km) |
| Kortenberg to Orleans | 237.33 mi (381.95 km) |
| Kortenberg to Orly | 175.93 mi (283.13 km) |
| Kortenberg to Ormesson-sur-Marne | 170.01 mi (273.60 km) |
| Kortenberg to Orsay | 183.68 mi (295.60 km) |
| Kortenberg to Orthez | 568.07 mi (914.22 km) |
