| Bonn to Octeville | 394.08 mi (634.21 km) |
| Bonn to Oignies | 180.98 mi (291.26 km) |
| Bonn to Oissel | 283.35 mi (456.00 km) |
| Bonn to Olivet | 306.77 mi (493.70 km) |
| Bonn to Ollioules | 527.99 mi (849.71 km) |
| Bonn to Olonne-sur-Mer | 497.69 mi (800.95 km) |
| Bonn to Oloron-Sainte-Marie | 634.38 mi (1,020.94 km) |
| Bonn to Onet Village | 487.35 mi (784.32 km) |
| Bonn to Onnaing | 155.53 mi (250.31 km) |
| Bonn to Orange | 468.01 mi (753.19 km) |
| Bonn to Orchies | 170.01 mi (273.60 km) |
| Bonn to Orleans | 304.70 mi (490.36 km) |
| Bonn to Orly | 251.07 mi (404.06 km) |
| Bonn to Ormesson-sur-Marne | 243.98 mi (392.66 km) |
| Bonn to Orsay | 260.57 mi (419.34 km) |
