| Aalst to Oignies | 56.07 mi (90.24 km) |
| Aalst to Oissel | 170.87 mi (275.00 km) |
| Aalst to Olivet | 233.15 mi (375.21 km) |
| Aalst to Ollioules | 545.49 mi (877.88 km) |
| Aalst to Olonne-sur-Mer | 403.05 mi (648.65 km) |
| Aalst to Oloron-Sainte-Marie | 577.72 mi (929.75 km) |
| Aalst to Onet Village | 459.06 mi (738.79 km) |
| Aalst to Onnaing | 42.66 mi (68.66 km) |
| Aalst to Orange | 471.20 mi (758.32 km) |
| Aalst to Orchies | 47.29 mi (76.10 km) |
| Aalst to Orleans | 230.55 mi (371.03 km) |
| Aalst to Orly | 168.42 mi (271.05 km) |
| Aalst to Ormesson-sur-Marne | 163.05 mi (262.40 km) |
| Aalst to Orsay | 175.41 mi (282.29 km) |
| Aalst to Orthez | 561.78 mi (904.10 km) |
