| Guillena to Octeville | 863.81 mi (1,390.17 km) |
| Guillena to Oignies | 998.70 mi (1,607.25 km) |
| Guillena to Oissel | 890.11 mi (1,432.49 km) |
| Guillena to Olivet | 819.01 mi (1,318.07 km) |
| Guillena to Ollioules | 735.56 mi (1,183.77 km) |
| Guillena to Olonne-sur-Mer | 659.36 mi (1,061.13 km) |
| Guillena to Oloron-Sainte-Marie | 484.63 mi (779.93 km) |
| Guillena to Onet Village | 652.19 mi (1,049.61 km) |
| Guillena to Onnaing | 1,007.54 mi (1,621.48 km) |
| Guillena to Orange | 727.30 mi (1,170.48 km) |
| Guillena to Orchies | 1,004.59 mi (1,616.73 km) |
| Guillena to Orleans | 821.47 mi (1,322.03 km) |
| Guillena to Orly | 882.55 mi (1,420.33 km) |
| Guillena to Ormesson-sur-Marne | 888.52 mi (1,429.93 km) |
| Guillena to Orsay | 874.97 mi (1,408.12 km) |
