| Herouville-Saint-Clair to Oignies | 171.76 mi (276.43 km) |
| Herouville-Saint-Clair to Oissel | 64.57 mi (103.91 km) |
| Herouville-Saint-Clair to Olivet | 137.65 mi (221.52 km) |
| Herouville-Saint-Clair to Ollioules | 512.28 mi (824.43 km) |
| Herouville-Saint-Clair to Olonne-sur-Mer | 196.18 mi (315.72 km) |
| Herouville-Saint-Clair to Oloron-Sainte-Marie | 415.48 mi (668.65 km) |
| Herouville-Saint-Clair to Onet Village | 361.65 mi (582.03 km) |
| Herouville-Saint-Clair to Onnaing | 193.11 mi (310.79 km) |
| Herouville-Saint-Clair to Orange | 426.15 mi (685.82 km) |
| Herouville-Saint-Clair to Orchies | 181.64 mi (292.32 km) |
| Herouville-Saint-Clair to Orleans | 136.13 mi (219.07 km) |
| Herouville-Saint-Clair to Orly | 127.31 mi (204.88 km) |
| Herouville-Saint-Clair to Ormesson-sur-Marne | 132.99 mi (214.03 km) |
| Herouville-Saint-Clair to Orsay | 119.25 mi (191.92 km) |
| Herouville-Saint-Clair to Orthez | 395.53 mi (636.54 km) |
