| Issum to Octeville | 377.50 mi (607.53 km) |
| Issum to Oignies | 166.42 mi (267.82 km) |
| Issum to Oissel | 279.35 mi (449.58 km) |
| Issum to Olivet | 324.41 mi (522.09 km) |
| Issum to Ollioules | 580.97 mi (934.98 km) |
| Issum to Olonne-sur-Mer | 506.70 mi (815.45 km) |
| Issum to Oloron-Sainte-Marie | 663.12 mi (1,067.18 km) |
| Issum to Onet Village | 526.17 mi (846.80 km) |
| Issum to Onnaing | 146.42 mi (235.64 km) |
| Issum to Orange | 516.75 mi (831.62 km) |
| Issum to Orchies | 156.55 mi (251.94 km) |
| Issum to Orleans | 322.05 mi (518.28 km) |
| Issum to Orly | 262.89 mi (423.08 km) |
| Issum to Ormesson-sur-Marne | 256.36 mi (412.57 km) |
| Issum to Orsay | 271.47 mi (436.90 km) |
