| Great Cornard to Octeville | 195.80 mi (315.12 km) |
| Great Cornard to Oignies | 144.78 mi (233.01 km) |
| Great Cornard to Oissel | 185.95 mi (299.26 km) |
| Great Cornard to Olivet | 291.98 mi (469.89 km) |
| Great Cornard to Ollioules | 657.85 mi (1,058.71 km) |
| Great Cornard to Olonne-sur-Mer | 395.83 mi (637.02 km) |
| Great Cornard to Oloron-Sainte-Marie | 613.35 mi (987.09 km) |
| Great Cornard to Onet Village | 535.90 mi (862.45 km) |
| Great Cornard to Onnaing | 167.28 mi (269.22 km) |
| Great Cornard to Orange | 575.98 mi (926.95 km) |
| Great Cornard to Orchies | 151.99 mi (244.60 km) |
| Great Cornard to Orleans | 289.42 mi (465.77 km) |
| Great Cornard to Orly | 237.93 mi (382.91 km) |
| Great Cornard to Ormesson-sur-Marne | 237.21 mi (381.75 km) |
| Great Cornard to Orsay | 238.40 mi (383.66 km) |
