| Ganserndorf to Oignies | 633.30 mi (1,019.20 km) |
| Ganserndorf to Oissel | 712.64 mi (1,146.89 km) |
| Ganserndorf to Olivet | 683.39 mi (1,099.81 km) |
| Ganserndorf to Ollioules | 634.60 mi (1,021.29 km) |
| Ganserndorf to Olonne-sur-Mer | 870.88 mi (1,401.55 km) |
| Ganserndorf to Oloron-Sainte-Marie | 904.96 mi (1,456.39 km) |
| Ganserndorf to Onet Village | 726.03 mi (1,168.43 km) |
| Ganserndorf to Onnaing | 606.16 mi (975.53 km) |
| Ganserndorf to Orange | 637.88 mi (1,026.57 km) |
| Ganserndorf to Orchies | 622.45 mi (1,001.74 km) |
| Ganserndorf to Orleans | 682.63 mi (1,098.58 km) |
| Ganserndorf to Orly | 654.90 mi (1,053.96 km) |
| Ganserndorf to Ormesson-sur-Marne | 648.14 mi (1,043.08 km) |
| Ganserndorf to Orsay | 664.42 mi (1,069.28 km) |
| Ganserndorf to Orthez | 902.51 mi (1,452.45 km) |
