| Irig to Octeville | 1,049.18 mi (1,688.50 km) |
| Irig to Oignies | 863.43 mi (1,389.56 km) |
| Irig to Oissel | 924.90 mi (1,488.49 km) |
| Irig to Olivet | 872.91 mi (1,404.82 km) |
| Irig to Ollioules | 706.71 mi (1,137.33 km) |
| Irig to Olonne-sur-Mer | 1,042.64 mi (1,677.97 km) |
| Irig to Oloron-Sainte-Marie | 1,019.93 mi (1,641.43 km) |
| Irig to Onet Village | 846.91 mi (1,362.98 km) |
| Irig to Onnaing | 836.46 mi (1,346.15 km) |
| Irig to Orange | 741.58 mi (1,193.46 km) |
| Irig to Orchies | 853.15 mi (1,373.01 km) |
| Irig to Orleans | 872.81 mi (1,404.65 km) |
| Irig to Orly | 859.20 mi (1,382.75 km) |
| Irig to Ormesson-sur-Marne | 853.23 mi (1,373.14 km) |
| Irig to Orsay | 867.85 mi (1,396.67 km) |
