| Veliki Preslav to Oignies | 1,227.21 mi (1,975.01 km) |
| Veliki Preslav to Oissel | 1,293.46 mi (2,081.62 km) |
| Veliki Preslav to Olivet | 1,243.17 mi (2,000.68 km) |
| Veliki Preslav to Ollioules | 1,054.23 mi (1,696.63 km) |
| Veliki Preslav to Olonne-sur-Mer | 1,411.63 mi (2,271.80 km) |
| Veliki Preslav to Oloron-Sainte-Marie | 1,375.45 mi (2,213.57 km) |
| Veliki Preslav to Onet Village | 1,207.10 mi (1,942.63 km) |
| Veliki Preslav to Onnaing | 1,200.07 mi (1,931.32 km) |
| Veliki Preslav to Orange | 1,098.94 mi (1,768.58 km) |
| Veliki Preslav to Orchies | 1,216.68 mi (1,958.06 km) |
| Veliki Preslav to Orleans | 1,243.06 mi (2,000.50 km) |
| Veliki Preslav to Orly | 1,228.63 mi (1,977.29 km) |
| Veliki Preslav to Ormesson-sur-Marne | 1,222.55 mi (1,967.51 km) |
| Veliki Preslav to Orsay | 1,237.39 mi (1,991.38 km) |
| Veliki Preslav to Orthez | 1,380.40 mi (2,221.54 km) |
