| Warren to Octeville | 3,738.87 mi (6,017.13 km) |
| Warren to Oignies | 3,895.99 mi (6,269.99 km) |
| Warren to Oissel | 3,857.36 mi (6,207.82 km) |
| Warren to Olivet | 3,938.22 mi (6,337.95 km) |
| Warren to Ollioules | 4,270.34 mi (6,872.44 km) |
| Warren to Olonne-sur-Mer | 3,829.85 mi (6,163.55 km) |
| Warren to Oloron-Sainte-Marie | 3,991.74 mi (6,424.08 km) |
| Warren to Onet Village | 4,087.81 mi (6,578.69 km) |
| Warren to Onnaing | 3,922.10 mi (6,312.01 km) |
| Warren to Orange | 4,189.38 mi (6,742.15 km) |
| Warren to Orchies | 3,905.54 mi (6,285.36 km) |
| Warren to Orleans | 3,937.27 mi (6,336.42 km) |
| Warren to Orly | 3,928.81 mi (6,322.81 km) |
| Warren to Ormesson-sur-Marne | 3,933.24 mi (6,329.93 km) |
| Warren to Orsay | 3,922.11 mi (6,312.02 km) |
