| Redon to Octeville | 137.97 mi (222.05 km) |
| Redon to Oignies | 301.15 mi (484.66 km) |
| Redon to Oissel | 186.49 mi (300.13 km) |
| Redon to Olivet | 185.67 mi (298.81 km) |
| Redon to Ollioules | 494.82 mi (796.33 km) |
| Redon to Olonne-sur-Mer | 78.44 mi (126.24 km) |
| Redon to Oloron-Sainte-Marie | 316.18 mi (508.84 km) |
| Redon to Onet Village | 319.17 mi (513.66 km) |
| Redon to Onnaing | 319.31 mi (513.87 km) |
| Redon to Orange | 410.63 mi (660.85 km) |
| Redon to Orchies | 310.11 mi (499.08 km) |
| Redon to Orleans | 186.22 mi (299.70 km) |
| Redon to Orly | 219.55 mi (353.33 km) |
| Redon to Ormesson-sur-Marne | 226.75 mi (364.92 km) |
| Redon to Orsay | 209.67 mi (337.44 km) |
