| Petrovaradin to Octeville | 1,045.58 mi (1,682.70 km) |
| Petrovaradin to Oignies | 858.76 mi (1,382.05 km) |
| Petrovaradin to Oissel | 921.28 mi (1,482.66 km) |
| Petrovaradin to Olivet | 870.36 mi (1,400.70 km) |
| Petrovaradin to Ollioules | 708.69 mi (1,140.52 km) |
| Petrovaradin to Olonne-sur-Mer | 1,041.12 mi (1,675.52 km) |
| Petrovaradin to Oloron-Sainte-Marie | 1,020.83 mi (1,642.86 km) |
| Petrovaradin to Onet Village | 847.30 mi (1,363.60 km) |
| Petrovaradin to Onnaing | 831.76 mi (1,338.58 km) |
| Petrovaradin to Orange | 742.43 mi (1,194.82 km) |
| Petrovaradin to Orchies | 848.44 mi (1,365.43 km) |
| Petrovaradin to Orleans | 870.22 mi (1,400.48 km) |
| Petrovaradin to Orly | 855.91 mi (1,377.46 km) |
| Petrovaradin to Ormesson-sur-Marne | 849.89 mi (1,367.76 km) |
| Petrovaradin to Orsay | 864.61 mi (1,391.46 km) |
