| Popovo to Oignies | 1,195.64 mi (1,924.19 km) |
| Popovo to Oissel | 1,261.58 mi (2,030.32 km) |
| Popovo to Olivet | 1,211.18 mi (1,949.21 km) |
| Popovo to Ollioules | 1,023.59 mi (1,647.31 km) |
| Popovo to Olonne-sur-Mer | 1,379.73 mi (2,220.46 km) |
| Popovo to Oloron-Sainte-Marie | 1,344.43 mi (2,163.65 km) |
| Popovo to Onet Village | 1,175.74 mi (1,892.17 km) |
| Popovo to Onnaing | 1,168.50 mi (1,880.51 km) |
| Popovo to Orange | 1,067.73 mi (1,718.34 km) |
| Popovo to Orchies | 1,185.12 mi (1,907.26 km) |
| Popovo to Orleans | 1,211.07 mi (1,949.03 km) |
| Popovo to Orly | 1,196.70 mi (1,925.90 km) |
| Popovo to Ormesson-sur-Marne | 1,190.63 mi (1,916.13 km) |
| Popovo to Orsay | 1,205.45 mi (1,939.98 km) |
| Popovo to Orthez | 1,349.26 mi (2,171.43 km) |
