| Borehamwood to Octeville | 152.63 mi (245.63 km) |
| Borehamwood to Oignies | 163.85 mi (263.70 km) |
| Borehamwood to Oissel | 170.86 mi (274.97 km) |
| Borehamwood to Olivet | 279.47 mi (449.76 km) |
| Borehamwood to Ollioules | 653.90 mi (1,052.35 km) |
| Borehamwood to Olonne-sur-Mer | 360.31 mi (579.86 km) |
| Borehamwood to Oloron-Sainte-Marie | 584.99 mi (941.44 km) |
| Borehamwood to Onet Village | 520.86 mi (838.24 km) |
| Borehamwood to Onnaing | 189.69 mi (305.27 km) |
| Borehamwood to Orange | 570.05 mi (917.41 km) |
| Borehamwood to Orchies | 173.16 mi (278.68 km) |
| Borehamwood to Orleans | 277.08 mi (445.92 km) |
| Borehamwood to Orly | 233.26 mi (375.39 km) |
| Borehamwood to Ormesson-sur-Marne | 234.08 mi (376.72 km) |
| Borehamwood to Orsay | 231.62 mi (372.76 km) |
