| Cernavoda to Octeville | 1,435.49 mi (2,310.20 km) |
| Cernavoda to Oignies | 1,238.07 mi (1,992.48 km) |
| Cernavoda to Oissel | 1,311.65 mi (2,110.90 km) |
| Cernavoda to Olivet | 1,269.07 mi (2,042.37 km) |
| Cernavoda to Ollioules | 1,107.25 mi (1,781.95 km) |
| Cernavoda to Olonne-sur-Mer | 1,444.35 mi (2,324.46 km) |
| Cernavoda to Oloron-Sainte-Marie | 1,423.97 mi (2,291.66 km) |
| Cernavoda to Onet Village | 1,251.80 mi (2,014.57 km) |
| Cernavoda to Onnaing | 1,210.88 mi (1,948.73 km) |
| Cernavoda to Orange | 1,145.84 mi (1,844.05 km) |
| Cernavoda to Orchies | 1,227.30 mi (1,975.15 km) |
| Cernavoda to Orleans | 1,268.75 mi (2,041.85 km) |
| Cernavoda to Orly | 1,249.51 mi (2,010.90 km) |
| Cernavoda to Ormesson-sur-Marne | 1,243.14 mi (2,000.64 km) |
| Cernavoda to Orsay | 1,258.61 mi (2,025.54 km) |
