| Petrosani to Octeville | 1,196.97 mi (1,926.34 km) |
| Petrosani to Oignies | 1,001.99 mi (1,612.54 km) |
| Petrosani to Oissel | 1,072.94 mi (1,726.73 km) |
| Petrosani to Olivet | 1,029.19 mi (1,656.32 km) |
| Petrosani to Ollioules | 879.29 mi (1,415.08 km) |
| Petrosani to Olonne-sur-Mer | 1,204.85 mi (1,939.03 km) |
| Petrosani to Oloron-Sainte-Marie | 1,191.09 mi (1,916.88 km) |
| Petrosani to Onet Village | 1,016.91 mi (1,636.56 km) |
| Petrosani to Onnaing | 974.80 mi (1,568.78 km) |
| Petrosani to Orange | 912.70 mi (1,468.84 km) |
| Petrosani to Orchies | 991.32 mi (1,595.38 km) |
| Petrosani to Orleans | 1,028.87 mi (1,655.81 km) |
| Petrosani to Orly | 1,010.17 mi (1,625.71 km) |
| Petrosani to Ormesson-sur-Marne | 1,003.85 mi (1,615.53 km) |
| Petrosani to Orsay | 1,019.21 mi (1,640.26 km) |
