| Targovishte to Oignies | 1,214.20 mi (1,954.06 km) |
| Targovishte to Oissel | 1,280.36 mi (2,060.55 km) |
| Targovishte to Olivet | 1,230.08 mi (1,979.62 km) |
| Targovishte to Ollioules | 1,041.86 mi (1,676.71 km) |
| Targovishte to Olonne-sur-Mer | 1,398.62 mi (2,250.86 km) |
| Targovishte to Oloron-Sainte-Marie | 1,362.89 mi (2,193.37 km) |
| Targovishte to Onet Village | 1,194.38 mi (1,922.17 km) |
| Targovishte to Onnaing | 1,187.05 mi (1,910.37 km) |
| Targovishte to Orange | 1,086.30 mi (1,748.22 km) |
| Targovishte to Orchies | 1,203.67 mi (1,937.11 km) |
| Targovishte to Orleans | 1,229.96 mi (1,979.44 km) |
| Targovishte to Orly | 1,215.53 mi (1,956.21 km) |
| Targovishte to Ormesson-sur-Marne | 1,209.45 mi (1,946.43 km) |
| Targovishte to Orsay | 1,224.29 mi (1,970.30 km) |
| Targovishte to Orthez | 1,367.79 mi (2,201.25 km) |
