| Ros Comain to Octeville | 393.79 mi (633.74 km) |
| Ros Comain to Oignies | 522.05 mi (840.16 km) |
| Ros Comain to Oissel | 496.49 mi (799.02 km) |
| Ros Comain to Olivet | 593.33 mi (954.87 km) |
| Ros Comain to Ollioules | 966.14 mi (1,554.85 km) |
| Ros Comain to Olonne-sur-Mer | 566.25 mi (911.29 km) |
| Ros Comain to Oloron-Sainte-Marie | 799.54 mi (1,286.73 km) |
| Ros Comain to Onet Village | 803.55 mi (1,293.18 km) |
| Ros Comain to Onnaing | 548.07 mi (882.03 km) |
| Ros Comain to Orange | 879.81 mi (1,415.92 km) |
| Ros Comain to Orchies | 531.52 mi (855.40 km) |
| Ros Comain to Orleans | 591.69 mi (952.23 km) |
| Ros Comain to Orly | 568.16 mi (914.37 km) |
| Ros Comain to Ormesson-sur-Marne | 571.36 mi (919.51 km) |
| Ros Comain to Orsay | 563.15 mi (906.30 km) |
