| Ciro Marina to Octeville | 1,159.90 mi (1,866.67 km) |
| Ciro Marina to Oignies | 1,029.17 mi (1,656.28 km) |
| Ciro Marina to Oissel | 1,046.07 mi (1,683.49 km) |
| Ciro Marina to Olivet | 958.67 mi (1,542.83 km) |
| Ciro Marina to Ollioules | 640.56 mi (1,030.88 km) |
| Ciro Marina to Olonne-sur-Mer | 1,072.67 mi (1,726.29 km) |
| Ciro Marina to Oloron-Sainte-Marie | 955.89 mi (1,538.35 km) |
| Ciro Marina to Onet Village | 822.11 mi (1,323.06 km) |
| Ciro Marina to Onnaing | 1,005.96 mi (1,618.94 km) |
| Ciro Marina to Orange | 714.30 mi (1,149.56 km) |
| Ciro Marina to Orchies | 1,021.37 mi (1,643.74 km) |
| Ciro Marina to Orleans | 959.76 mi (1,544.59 km) |
| Ciro Marina to Orly | 974.10 mi (1,567.66 km) |
| Ciro Marina to Ormesson-sur-Marne | 970.48 mi (1,561.84 km) |
| Ciro Marina to Orsay | 979.83 mi (1,576.88 km) |
