| Bargoed to Octeville | 158.77 mi (255.52 km) |
| Bargoed to Oignies | 283.32 mi (455.96 km) |
| Bargoed to Oissel | 249.99 mi (402.32 km) |
| Bargoed to Olivet | 349.82 mi (562.97 km) |
| Bargoed to Ollioules | 726.50 mi (1,169.19 km) |
| Bargoed to Olonne-sur-Mer | 362.21 mi (582.92 km) |
| Bargoed to Oloron-Sainte-Marie | 599.66 mi (965.05 km) |
| Bargoed to Onet Village | 572.94 mi (922.06 km) |
| Bargoed to Onnaing | 310.27 mi (499.34 km) |
| Bargoed to Orange | 640.42 mi (1,030.66 km) |
| Bargoed to Orchies | 293.59 mi (472.48 km) |
| Bargoed to Orleans | 347.99 mi (560.04 km) |
| Bargoed to Orly | 321.48 mi (517.38 km) |
| Bargoed to Ormesson-sur-Marne | 324.60 mi (522.39 km) |
| Bargoed to Orsay | 316.66 mi (509.61 km) |
