| Oostkamp to Oignies | 48.50 mi (78.06 km) |
| Oostkamp to Oissel | 157.01 mi (252.68 km) |
| Oostkamp to Olivet | 235.09 mi (378.35 km) |
| Oostkamp to Ollioules | 567.12 mi (912.69 km) |
| Oostkamp to Olonne-sur-Mer | 391.82 mi (630.57 km) |
| Oostkamp to Oloron-Sainte-Marie | 578.63 mi (931.22 km) |
| Oostkamp to Onet Village | 470.00 mi (756.39 km) |
| Oostkamp to Onnaing | 55.29 mi (88.98 km) |
| Oostkamp to Orange | 490.24 mi (788.97 km) |
| Oostkamp to Orchies | 46.96 mi (75.58 km) |
| Oostkamp to Orleans | 232.41 mi (374.03 km) |
| Oostkamp to Orly | 170.71 mi (274.73 km) |
| Oostkamp to Ormesson-sur-Marne | 166.56 mi (268.05 km) |
| Oostkamp to Orsay | 175.99 mi (283.23 km) |
| Oostkamp to Orthez | 561.72 mi (904.01 km) |
