| Kozloduy to Oignies | 1,074.03 mi (1,728.49 km) |
| Kozloduy to Oissel | 1,136.91 mi (1,829.67 km) |
| Kozloduy to Olivet | 1,084.30 mi (1,745.01 km) |
| Kozloduy to Ollioules | 896.37 mi (1,442.57 km) |
| Kozloduy to Olonne-sur-Mer | 1,251.51 mi (2,014.11 km) |
| Kozloduy to Oloron-Sainte-Marie | 1,216.39 mi (1,957.59 km) |
| Kozloduy to Onet Village | 1,047.21 mi (1,685.33 km) |
| Kozloduy to Onnaing | 1,046.98 mi (1,684.95 km) |
| Kozloduy to Orange | 939.40 mi (1,511.81 km) |
| Kozloduy to Orchies | 1,063.65 mi (1,711.78 km) |
| Kozloduy to Orleans | 1,084.24 mi (1,744.91 km) |
| Kozloduy to Orly | 1,071.23 mi (1,723.97 km) |
| Kozloduy to Ormesson-sur-Marne | 1,065.26 mi (1,714.37 km) |
| Kozloduy to Orsay | 1,079.86 mi (1,737.86 km) |
| Kozloduy to Orthez | 1,221.03 mi (1,965.05 km) |
