| Otopeni to Octeville | 1,341.60 mi (2,159.09 km) |
| Otopeni to Oignies | 1,146.24 mi (1,844.70 km) |
| Otopeni to Oissel | 1,217.55 mi (1,959.46 km) |
| Otopeni to Olivet | 1,173.07 mi (1,887.87 km) |
| Otopeni to Ollioules | 1,009.84 mi (1,625.18 km) |
| Otopeni to Olonne-sur-Mer | 1,347.25 mi (2,168.19 km) |
| Otopeni to Oloron-Sainte-Marie | 1,326.10 mi (2,134.15 km) |
| Otopeni to Onet Village | 1,153.84 mi (1,856.92 km) |
| Otopeni to Onnaing | 1,119.05 mi (1,800.93 km) |
| Otopeni to Orange | 1,047.94 mi (1,686.49 km) |
| Otopeni to Orchies | 1,135.55 mi (1,827.49 km) |
| Otopeni to Orleans | 1,172.79 mi (1,887.42 km) |
| Otopeni to Orly | 1,154.66 mi (1,858.24 km) |
| Otopeni to Ormesson-sur-Marne | 1,148.35 mi (1,848.09 km) |
| Otopeni to Orsay | 1,163.67 mi (1,872.75 km) |
