| Ostroda to Octeville | 963.62 mi (1,550.80 km) |
| Ostroda to Oignies | 752.31 mi (1,210.72 km) |
| Ostroda to Oissel | 862.38 mi (1,387.87 km) |
| Ostroda to Olivet | 882.85 mi (1,420.81 km) |
| Ostroda to Ollioules | 971.97 mi (1,564.23 km) |
| Ostroda to Olonne-sur-Mer | 1,076.87 mi (1,733.06 km) |
| Ostroda to Oloron-Sainte-Marie | 1,182.61 mi (1,903.23 km) |
| Ostroda to Onet Village | 1,012.81 mi (1,629.95 km) |
| Ostroda to Onnaing | 730.34 mi (1,175.37 km) |
| Ostroda to Orange | 950.28 mi (1,529.32 km) |
| Ostroda to Orchies | 742.08 mi (1,194.25 km) |
| Ostroda to Orleans | 881.04 mi (1,417.90 km) |
| Ostroda to Orly | 831.15 mi (1,337.60 km) |
| Ostroda to Ormesson-sur-Marne | 823.97 mi (1,326.06 km) |
| Ostroda to Orsay | 840.80 mi (1,353.13 km) |
