| Flers to Oignies | 198.93 mi (320.14 km) |
| Flers to Oissel | 85.67 mi (137.87 km) |
| Flers to Olivet | 128.91 mi (207.46 km) |
| Flers to Ollioules | 494.82 mi (796.33 km) |
| Flers to Olonne-sur-Mer | 162.79 mi (261.98 km) |
| Flers to Oloron-Sainte-Marie | 383.76 mi (617.59 km) |
| Flers to Onet Village | 337.98 mi (543.92 km) |
| Flers to Onnaing | 218.37 mi (351.43 km) |
| Flers to Orange | 408.49 mi (657.40 km) |
| Flers to Orchies | 208.23 mi (335.12 km) |
| Flers to Orleans | 127.97 mi (205.95 km) |
| Flers to Orly | 134.95 mi (217.18 km) |
| Flers to Ormesson-sur-Marne | 141.54 mi (227.79 km) |
| Flers to Orsay | 125.70 mi (202.30 km) |
| Flers to Orthez | 363.57 mi (585.11 km) |
