| Gaillard to Oignies | 330.71 mi (532.22 km) |
| Gaillard to Oissel | 322.41 mi (518.87 km) |
| Gaillard to Olivet | 233.63 mi (375.99 km) |
| Gaillard to Ollioules | 211.17 mi (339.85 km) |
| Gaillard to Olonne-sur-Mer | 381.13 mi (613.37 km) |
| Gaillard to Oloron-Sainte-Marie | 393.16 mi (632.72 km) |
| Gaillard to Onet Village | 216.01 mi (347.64 km) |
| Gaillard to Onnaing | 314.14 mi (505.56 km) |
| Gaillard to Orange | 156.95 mi (252.59 km) |
| Gaillard to Orchies | 326.09 mi (524.79 km) |
| Gaillard to Orleans | 234.56 mi (377.49 km) |
| Gaillard to Orly | 250.96 mi (403.88 km) |
| Gaillard to Ormesson-sur-Marne | 248.22 mi (399.47 km) |
| Gaillard to Orsay | 255.75 mi (411.59 km) |
| Gaillard to Orthez | 389.18 mi (626.33 km) |
