| Haacht to Oignies | 79.99 mi (128.72 km) |
| Haacht to Oissel | 193.34 mi (311.15 km) |
| Haacht to Olivet | 247.72 mi (398.66 km) |
| Haacht to Ollioules | 544.47 mi (876.24 km) |
| Haacht to Olonne-sur-Mer | 423.24 mi (681.13 km) |
| Haacht to Oloron-Sainte-Marie | 591.24 mi (951.51 km) |
| Haacht to Onet Village | 466.52 mi (750.80 km) |
| Haacht to Onnaing | 61.03 mi (98.22 km) |
| Haacht to Orange | 472.56 mi (760.50 km) |
| Haacht to Orchies | 70.11 mi (112.83 km) |
| Haacht to Orleans | 245.19 mi (394.60 km) |
| Haacht to Orly | 183.81 mi (295.81 km) |
| Haacht to Ormesson-sur-Marne | 177.88 mi (286.27 km) |
| Haacht to Orsay | 191.56 mi (308.28 km) |
| Haacht to Orthez | 575.89 mi (926.81 km) |
