| West Monroe to Octeville | 4,569.29 mi (7,353.57 km) |
| West Monroe to Oignies | 4,733.26 mi (7,617.45 km) |
| West Monroe to Oissel | 4,689.59 mi (7,547.16 km) |
| West Monroe to Olivet | 4,766.49 mi (7,670.93 km) |
| West Monroe to Ollioules | 5,087.11 mi (8,186.92 km) |
| West Monroe to Olonne-sur-Mer | 4,648.41 mi (7,480.89 km) |
| West Monroe to Oloron-Sainte-Marie | 4,797.30 mi (7,720.50 km) |
| West Monroe to Onet Village | 4,904.01 mi (7,892.24 km) |
| West Monroe to Onnaing | 4,759.68 mi (7,659.96 km) |
| West Monroe to Orange | 5,008.25 mi (8,060.00 km) |
| West Monroe to Orchies | 4,743.04 mi (7,633.18 km) |
| West Monroe to Orleans | 4,765.69 mi (7,669.63 km) |
| West Monroe to Orly | 4,760.51 mi (7,661.29 km) |
| West Monroe to Ormesson-sur-Marne | 4,765.22 mi (7,668.88 km) |
| West Monroe to Orsay | 4,753.44 mi (7,649.92 km) |
