| Humanes de Madrid to Octeville | 656.29 mi (1,056.19 km) |
| Humanes de Madrid to Oignies | 778.83 mi (1,253.41 km) |
| Humanes de Madrid to Oissel | 672.27 mi (1,081.92 km) |
| Humanes de Madrid to Olivet | 597.39 mi (961.41 km) |
| Humanes de Madrid to Ollioules | 537.06 mi (864.31 km) |
| Humanes de Madrid to Olonne-sur-Mer | 446.11 mi (717.94 km) |
| Humanes de Madrid to Oloron-Sainte-Marie | 262.37 mi (422.25 km) |
| Humanes de Madrid to Onet Village | 433.76 mi (698.07 km) |
| Humanes de Madrid to Onnaing | 786.72 mi (1,266.11 km) |
| Humanes de Madrid to Orange | 516.80 mi (831.72 km) |
| Humanes de Madrid to Orchies | 784.35 mi (1,262.30 km) |
| Humanes de Madrid to Orleans | 599.89 mi (965.43 km) |
| Humanes de Madrid to Orly | 661.34 mi (1,064.32 km) |
| Humanes de Madrid to Ormesson-sur-Marne | 667.16 mi (1,073.69 km) |
| Humanes de Madrid to Orsay | 653.98 mi (1,052.48 km) |
