| Bletchley to Octeville | 168.31 mi (270.88 km) |
| Bletchley to Oignies | 192.53 mi (309.84 km) |
| Bletchley to Oissel | 199.87 mi (321.66 km) |
| Bletchley to Olivet | 308.40 mi (496.32 km) |
| Bletchley to Ollioules | 683.70 mi (1,100.30 km) |
| Bletchley to Olonne-sur-Mer | 380.00 mi (611.55 km) |
| Bletchley to Oloron-Sainte-Marie | 608.04 mi (978.54 km) |
| Bletchley to Onet Village | 548.74 mi (883.10 km) |
| Bletchley to Onnaing | 217.83 mi (350.57 km) |
| Bletchley to Orange | 599.64 mi (965.03 km) |
| Bletchley to Orchies | 201.48 mi (324.24 km) |
| Bletchley to Orleans | 306.06 mi (492.55 km) |
| Bletchley to Orly | 263.37 mi (423.85 km) |
| Bletchley to Ormesson-sur-Marne | 264.30 mi (425.36 km) |
| Bletchley to Orsay | 261.54 mi (420.91 km) |
