| Blaj to Octeville | 1,201.47 mi (1,933.58 km) |
| Blaj to Oignies | 1,002.02 mi (1,612.59 km) |
| Blaj to Oissel | 1,078.04 mi (1,734.93 km) |
| Blaj to Olivet | 1,039.91 mi (1,673.57 km) |
| Blaj to Ollioules | 910.24 mi (1,464.89 km) |
| Blaj to Olonne-sur-Mer | 1,219.77 mi (1,963.03 km) |
| Blaj to Oloron-Sainte-Marie | 1,217.02 mi (1,958.61 km) |
| Blaj to Onet Village | 1,041.05 mi (1,675.41 km) |
| Blaj to Onnaing | 974.85 mi (1,568.87 km) |
| Blaj to Orange | 939.06 mi (1,511.27 km) |
| Blaj to Orchies | 991.20 mi (1,595.19 km) |
| Blaj to Orleans | 1,039.44 mi (1,672.82 km) |
| Blaj to Orly | 1,017.36 mi (1,637.29 km) |
| Blaj to Ormesson-sur-Marne | 1,010.84 mi (1,626.80 km) |
| Blaj to Orsay | 1,026.62 mi (1,652.18 km) |
