| Olney to Octeville | 3,634.46 mi (5,849.11 km) |
| Olney to Oignies | 3,807.36 mi (6,127.36 km) |
| Olney to Oissel | 3,756.52 mi (6,045.53 km) |
| Olney to Olivet | 3,828.59 mi (6,161.52 km) |
| Olney to Ollioules | 4,139.03 mi (6,661.12 km) |
| Olney to Olonne-sur-Mer | 3,702.53 mi (5,958.65 km) |
| Olney to Oloron-Sainte-Marie | 3,844.12 mi (6,186.52 km) |
| Olney to Onet Village | 3,955.97 mi (6,366.51 km) |
| Olney to Onnaing | 3,834.18 mi (6,170.51 km) |
| Olney to Orange | 4,061.71 mi (6,536.68 km) |
| Olney to Orchies | 3,817.48 mi (6,143.65 km) |
| Olney to Orleans | 3,827.93 mi (6,160.46 km) |
| Olney to Orly | 3,826.51 mi (6,158.17 km) |
| Olney to Ormesson-sur-Marne | 3,831.55 mi (6,166.29 km) |
| Olney to Orsay | 3,819.02 mi (6,146.12 km) |
