| Burgas to Oignies | 1,280.03 mi (2,060.01 km) |
| Burgas to Oissel | 1,344.61 mi (2,163.94 km) |
| Burgas to Olivet | 1,292.36 mi (2,079.86 km) |
| Burgas to Ollioules | 1,093.67 mi (1,760.10 km) |
| Burgas to Olonne-sur-Mer | 1,458.56 mi (2,347.33 km) |
| Burgas to Oloron-Sainte-Marie | 1,416.38 mi (2,279.44 km) |
| Burgas to Onet Village | 1,249.90 mi (2,011.52 km) |
| Burgas to Onnaing | 1,252.91 mi (2,016.37 km) |
| Burgas to Orange | 1,141.02 mi (1,836.30 km) |
| Burgas to Orchies | 1,269.55 mi (2,043.15 km) |
| Burgas to Orleans | 1,292.31 mi (2,079.77 km) |
| Burgas to Orly | 1,279.19 mi (2,058.65 km) |
| Burgas to Ormesson-sur-Marne | 1,273.19 mi (2,049.00 km) |
| Burgas to Orsay | 1,287.85 mi (2,072.59 km) |
| Burgas to Orthez | 1,421.94 mi (2,288.39 km) |
