| Chateaubriant to Oignies | 274.23 mi (441.33 km) |
| Chateaubriant to Oissel | 159.21 mi (256.22 km) |
| Chateaubriant to Olivet | 152.43 mi (245.31 km) |
| Chateaubriant to Ollioules | 471.54 mi (758.87 km) |
| Chateaubriant to Olonne-sur-Mer | 83.69 mi (134.68 km) |
| Chateaubriant to Oloron-Sainte-Marie | 314.70 mi (506.46 km) |
| Chateaubriant to Onet Village | 299.69 mi (482.30 km) |
| Chateaubriant to Onnaing | 291.07 mi (468.44 km) |
| Chateaubriant to Orange | 386.46 mi (621.94 km) |
| Chateaubriant to Orchies | 282.75 mi (455.04 km) |
| Chateaubriant to Orleans | 152.96 mi (246.17 km) |
| Chateaubriant to Orly | 187.39 mi (301.58 km) |
| Chateaubriant to Ormesson-sur-Marne | 194.61 mi (313.20 km) |
| Chateaubriant to Orsay | 177.52 mi (285.69 km) |
| Chateaubriant to Orthez | 293.64 mi (472.57 km) |
