| Cerkno to Octeville | 762.12 mi (1,226.52 km) |
| Cerkno to Oignies | 586.92 mi (944.55 km) |
| Cerkno to Oissel | 638.27 mi (1,027.19 km) |
| Cerkno to Olivet | 581.62 mi (936.02 km) |
| Cerkno to Ollioules | 450.26 mi (724.62 km) |
| Cerkno to Olonne-sur-Mer | 751.35 mi (1,209.18 km) |
| Cerkno to Oloron-Sainte-Marie | 744.29 mi (1,197.82 km) |
| Cerkno to Onet Village | 567.14 mi (912.72 km) |
| Cerkno to Onnaing | 560.67 mi (902.30 km) |
| Cerkno to Orange | 467.87 mi (752.97 km) |
| Cerkno to Orchies | 577.26 mi (929.01 km) |
| Cerkno to Orleans | 581.58 mi (935.96 km) |
| Cerkno to Orly | 570.72 mi (918.49 km) |
| Cerkno to Ormesson-sur-Marne | 565.02 mi (909.32 km) |
| Cerkno to Orsay | 579.06 mi (931.91 km) |
