| Sevlievo to Oignies | 1,160.68 mi (1,867.93 km) |
| Sevlievo to Oissel | 1,222.76 mi (1,967.84 km) |
| Sevlievo to Olivet | 1,168.77 mi (1,880.95 km) |
| Sevlievo to Ollioules | 970.14 mi (1,561.29 km) |
| Sevlievo to Olonne-sur-Mer | 1,333.93 mi (2,146.75 km) |
| Sevlievo to Oloron-Sainte-Marie | 1,292.26 mi (2,079.69 km) |
| Sevlievo to Onet Village | 1,125.23 mi (1,810.88 km) |
| Sevlievo to Onnaing | 1,133.64 mi (1,824.42 km) |
| Sevlievo to Orange | 1,016.51 mi (1,635.92 km) |
| Sevlievo to Orchies | 1,150.31 mi (1,851.25 km) |
| Sevlievo to Orleans | 1,168.76 mi (1,880.93 km) |
| Sevlievo to Orly | 1,156.71 mi (1,861.55 km) |
| Sevlievo to Ormesson-sur-Marne | 1,150.80 mi (1,852.04 km) |
| Sevlievo to Orsay | 1,165.28 mi (1,875.33 km) |
| Sevlievo to Orthez | 1,297.61 mi (2,088.31 km) |
