| Edwardsville to Octeville | 4,182.62 mi (6,731.27 km) |
| Edwardsville to Oignies | 4,337.68 mi (6,980.83 km) |
| Edwardsville to Oissel | 4,300.64 mi (6,921.22 km) |
| Edwardsville to Olivet | 4,382.31 mi (7,052.65 km) |
| Edwardsville to Ollioules | 4,715.56 mi (7,588.96 km) |
| Edwardsville to Olonne-sur-Mer | 4,275.04 mi (6,880.01 km) |
| Edwardsville to Oloron-Sainte-Marie | 4,436.97 mi (7,140.61 km) |
| Edwardsville to Onet Village | 4,533.08 mi (7,295.28 km) |
| Edwardsville to Onnaing | 4,363.66 mi (7,022.64 km) |
| Edwardsville to Orange | 4,634.50 mi (7,458.51 km) |
| Edwardsville to Orchies | 4,347.14 mi (6,996.04 km) |
| Edwardsville to Orleans | 4,381.34 mi (7,051.08 km) |
| Edwardsville to Orly | 4,372.20 mi (7,036.37 km) |
| Edwardsville to Ormesson-sur-Marne | 4,376.56 mi (7,043.38 km) |
| Edwardsville to Orsay | 4,365.58 mi (7,025.73 km) |
