| Dunkerque to Oignies | 47.66 mi (76.70 km) |
| Dunkerque to Oissel | 130.28 mi (209.67 km) |
| Dunkerque to Olivet | 220.37 mi (354.65 km) |
| Dunkerque to Ollioules | 569.47 mi (916.48 km) |
| Dunkerque to Olonne-sur-Mer | 363.82 mi (585.51 km) |
| Dunkerque to Oloron-Sainte-Marie | 559.72 mi (900.78 km) |
| Dunkerque to Onet Village | 461.15 mi (742.15 km) |
| Dunkerque to Onnaing | 69.80 mi (112.33 km) |
| Dunkerque to Orange | 489.96 mi (788.51 km) |
| Dunkerque to Orchies | 54.33 mi (87.43 km) |
| Dunkerque to Orleans | 217.68 mi (350.32 km) |
| Dunkerque to Orly | 158.53 mi (255.13 km) |
| Dunkerque to Ormesson-sur-Marne | 155.80 mi (250.73 km) |
| Dunkerque to Orsay | 161.91 mi (260.57 km) |
| Dunkerque to Orthez | 542.02 mi (872.29 km) |
