| Segni to Octeville | 893.17 mi (1,437.42 km) |
| Segni to Oignies | 772.71 mi (1,243.55 km) |
| Segni to Oissel | 781.49 mi (1,257.69 km) |
| Segni to Olivet | 691.40 mi (1,112.71 km) |
| Segni to Ollioules | 379.20 mi (610.26 km) |
| Segni to Olonne-sur-Mer | 805.02 mi (1,295.56 km) |
| Segni to Oloron-Sainte-Marie | 701.66 mi (1,129.21 km) |
| Segni to Onet Village | 557.67 mi (897.48 km) |
| Segni to Onnaing | 750.94 mi (1,208.51 km) |
| Segni to Orange | 448.36 mi (721.57 km) |
| Segni to Orchies | 765.66 mi (1,232.22 km) |
| Segni to Orleans | 692.58 mi (1,114.60 km) |
| Segni to Orly | 709.67 mi (1,142.10 km) |
| Segni to Ormesson-sur-Marne | 706.43 mi (1,136.88 km) |
| Segni to Orsay | 714.94 mi (1,150.59 km) |
