| Buftea to Octeville | 1,335.66 mi (2,149.53 km) |
| Buftea to Oignies | 1,140.41 mi (1,835.31 km) |
| Buftea to Oissel | 1,211.61 mi (1,949.89 km) |
| Buftea to Olivet | 1,167.04 mi (1,878.18 km) |
| Buftea to Ollioules | 1,003.90 mi (1,615.62 km) |
| Buftea to Olonne-sur-Mer | 1,341.19 mi (2,158.43 km) |
| Buftea to Oloron-Sainte-Marie | 1,320.09 mi (2,124.48 km) |
| Buftea to Onet Village | 1,147.80 mi (1,847.21 km) |
| Buftea to Onnaing | 1,113.21 mi (1,791.55 km) |
| Buftea to Orange | 1,041.92 mi (1,676.81 km) |
| Buftea to Orchies | 1,129.72 mi (1,818.11 km) |
| Buftea to Orleans | 1,166.76 mi (1,877.73 km) |
| Buftea to Orly | 1,148.68 mi (1,848.62 km) |
| Buftea to Ormesson-sur-Marne | 1,142.38 mi (1,838.48 km) |
| Buftea to Orsay | 1,157.69 mi (1,863.12 km) |
