| Svilengrad to Oignies | 1,256.17 mi (2,021.61 km) |
| Svilengrad to Oissel | 1,314.80 mi (2,115.97 km) |
| Svilengrad to Olivet | 1,256.99 mi (2,022.93 km) |
| Svilengrad to Ollioules | 1,039.33 mi (1,672.64 km) |
| Svilengrad to Olonne-sur-Mer | 1,417.29 mi (2,280.90 km) |
| Svilengrad to Oloron-Sainte-Marie | 1,363.69 mi (2,194.64 km) |
| Svilengrad to Onet Village | 1,200.76 mi (1,932.43 km) |
| Svilengrad to Onnaing | 1,229.24 mi (1,978.27 km) |
| Svilengrad to Orange | 1,090.88 mi (1,755.61 km) |
| Svilengrad to Orchies | 1,245.93 mi (2,005.13 km) |
| Svilengrad to Orleans | 1,257.10 mi (2,023.11 km) |
| Svilengrad to Orly | 1,247.69 mi (2,007.96 km) |
| Svilengrad to Ormesson-sur-Marne | 1,241.95 mi (1,998.73 km) |
| Svilengrad to Orsay | 1,256.04 mi (2,021.40 km) |
| Svilengrad to Orthez | 1,370.23 mi (2,205.18 km) |
