| Puerto Real to Octeville | 933.17 mi (1,501.80 km) |
| Puerto Real to Oignies | 1,065.61 mi (1,714.93 km) |
| Puerto Real to Oissel | 957.77 mi (1,541.38 km) |
| Puerto Real to Olivet | 884.78 mi (1,423.92 km) |
| Puerto Real to Ollioules | 783.94 mi (1,261.63 km) |
| Puerto Real to Olonne-sur-Mer | 727.90 mi (1,171.43 km) |
| Puerto Real to Oloron-Sainte-Marie | 547.24 mi (880.70 km) |
| Puerto Real to Onet Village | 710.86 mi (1,144.01 km) |
| Puerto Real to Onnaing | 1,073.93 mi (1,728.32 km) |
| Puerto Real to Orange | 781.13 mi (1,257.10 km) |
| Puerto Real to Orchies | 1,071.31 mi (1,724.11 km) |
| Puerto Real to Orleans | 887.28 mi (1,427.93 km) |
| Puerto Real to Orly | 948.65 mi (1,526.71 km) |
| Puerto Real to Ormesson-sur-Marne | 954.51 mi (1,536.14 km) |
| Puerto Real to Orsay | 941.22 mi (1,514.75 km) |
