| Huercal-Overa to Octeville | 846.07 mi (1,361.62 km) |
| Huercal-Overa to Oignies | 936.26 mi (1,506.77 km) |
| Huercal-Overa to Oissel | 839.93 mi (1,351.73 km) |
| Huercal-Overa to Olivet | 749.66 mi (1,206.46 km) |
| Huercal-Overa to Ollioules | 570.87 mi (918.73 km) |
| Huercal-Overa to Olonne-sur-Mer | 632.45 mi (1,017.83 km) |
| Huercal-Overa to Oloron-Sainte-Marie | 407.52 mi (655.84 km) |
| Huercal-Overa to Onet Village | 537.06 mi (864.32 km) |
| Huercal-Overa to Onnaing | 939.12 mi (1,511.38 km) |
| Huercal-Overa to Orange | 584.67 mi (940.93 km) |
| Huercal-Overa to Orchies | 939.91 mi (1,512.64 km) |
| Huercal-Overa to Orleans | 752.33 mi (1,210.75 km) |
| Huercal-Overa to Orly | 814.40 mi (1,310.65 km) |
| Huercal-Overa to Ormesson-sur-Marne | 819.13 mi (1,318.27 km) |
| Huercal-Overa to Orsay | 808.68 mi (1,301.44 km) |
