| Trelaze to Octeville | 160.00 mi (257.50 km) |
| Trelaze to Oignies | 261.22 mi (420.40 km) |
| Trelaze to Oissel | 149.21 mi (240.13 km) |
| Trelaze to Olivet | 113.88 mi (183.27 km) |
| Trelaze to Ollioules | 427.18 mi (687.48 km) |
| Trelaze to Olonne-sur-Mer | 88.00 mi (141.62 km) |
| Trelaze to Oloron-Sainte-Marie | 293.86 mi (472.92 km) |
| Trelaze to Onet Village | 258.69 mi (416.32 km) |
| Trelaze to Onnaing | 274.45 mi (441.69 km) |
| Trelaze to Orange | 341.68 mi (549.88 km) |
| Trelaze to Orchies | 268.49 mi (432.09 km) |
| Trelaze to Orleans | 114.92 mi (184.94 km) |
| Trelaze to Orly | 159.51 mi (256.71 km) |
| Trelaze to Ormesson-sur-Marne | 166.65 mi (268.20 km) |
| Trelaze to Orsay | 149.97 mi (241.35 km) |
