| Formby to Octeville | 278.43 mi (448.08 km) |
| Formby to Oignies | 334.43 mi (538.21 km) |
| Formby to Oissel | 341.83 mi (550.12 km) |
| Formby to Olivet | 449.24 mi (722.98 km) |
| Formby to Ollioules | 826.66 mi (1,330.38 km) |
| Formby to Olonne-sur-Mer | 488.57 mi (786.28 km) |
| Formby to Oloron-Sainte-Marie | 724.84 mi (1,166.52 km) |
| Formby to Onet Village | 684.58 mi (1,101.72 km) |
| Formby to Onnaing | 358.18 mi (576.43 km) |
| Formby to Orange | 741.85 mi (1,193.90 km) |
| Formby to Orchies | 342.44 mi (551.10 km) |
| Formby to Orleans | 447.04 mi (719.44 km) |
| Formby to Orly | 407.97 mi (656.56 km) |
| Formby to Ormesson-sur-Marne | 409.24 mi (658.62 km) |
| Formby to Orsay | 405.57 mi (652.70 km) |
