| Yambol to Oignies | 1,239.92 mi (1,995.46 km) |
| Yambol to Oissel | 1,302.43 mi (2,096.06 km) |
| Yambol to Olivet | 1,248.38 mi (2,009.07 km) |
| Yambol to Ollioules | 1,045.16 mi (1,682.03 km) |
| Yambol to Olonne-sur-Mer | 1,412.94 mi (2,273.91 km) |
| Yambol to Oloron-Sainte-Marie | 1,368.20 mi (2,201.91 km) |
| Yambol to Onet Village | 1,202.36 mi (1,935.01 km) |
| Yambol to Onnaing | 1,212.86 mi (1,951.91 km) |
| Yambol to Orange | 1,093.26 mi (1,759.43 km) |
| Yambol to Orchies | 1,229.52 mi (1,978.73 km) |
| Yambol to Orleans | 1,248.38 mi (2,009.07 km) |
| Yambol to Orly | 1,236.42 mi (1,989.82 km) |
| Yambol to Ormesson-sur-Marne | 1,230.51 mi (1,980.31 km) |
| Yambol to Orsay | 1,244.98 mi (2,003.61 km) |
| Yambol to Orthez | 1,373.94 mi (2,211.14 km) |
