| Blagoevgrad to Oignies | 1,118.75 mi (1,800.45 km) |
| Blagoevgrad to Oissel | 1,170.82 mi (1,884.25 km) |
| Blagoevgrad to Olivet | 1,107.99 mi (1,783.13 km) |
| Blagoevgrad to Ollioules | 879.19 mi (1,414.91 km) |
| Blagoevgrad to Olonne-sur-Mer | 1,263.29 mi (2,033.07 km) |
| Blagoevgrad to Oloron-Sainte-Marie | 1,203.86 mi (1,937.42 km) |
| Blagoevgrad to Onet Village | 1,042.42 mi (1,677.61 km) |
| Blagoevgrad to Onnaing | 1,092.16 mi (1,757.67 km) |
| Blagoevgrad to Orange | 932.21 mi (1,500.25 km) |
| Blagoevgrad to Orchies | 1,108.83 mi (1,784.49 km) |
| Blagoevgrad to Orleans | 1,108.24 mi (1,783.54 km) |
| Blagoevgrad to Orly | 1,102.28 mi (1,773.95 km) |
| Blagoevgrad to Ormesson-sur-Marne | 1,096.82 mi (1,765.16 km) |
| Blagoevgrad to Orsay | 1,110.31 mi (1,786.87 km) |
| Blagoevgrad to Orthez | 1,210.72 mi (1,948.47 km) |
