| Petilia Policastro to Octeville | 1,158.90 mi (1,865.07 km) |
| Petilia Policastro to Oignies | 1,032.18 mi (1,661.13 km) |
| Petilia Policastro to Oissel | 1,046.27 mi (1,683.81 km) |
| Petilia Policastro to Olivet | 957.25 mi (1,540.54 km) |
| Petilia Policastro to Ollioules | 632.73 mi (1,018.28 km) |
| Petilia Policastro to Olonne-sur-Mer | 1,067.23 mi (1,717.54 km) |
| Petilia Policastro to Oloron-Sainte-Marie | 945.47 mi (1,521.59 km) |
| Petilia Policastro to Onet Village | 814.98 mi (1,311.59 km) |
| Petilia Policastro to Onnaing | 1,009.34 mi (1,624.37 km) |
| Petilia Policastro to Orange | 708.05 mi (1,139.50 km) |
| Petilia Policastro to Orchies | 1,024.58 mi (1,648.91 km) |
| Petilia Policastro to Orleans | 958.40 mi (1,542.40 km) |
| Petilia Policastro to Orly | 974.34 mi (1,568.05 km) |
| Petilia Policastro to Ormesson-sur-Marne | 970.89 mi (1,562.50 km) |
| Petilia Policastro to Orsay | 979.86 mi (1,576.93 km) |
