| Monroe to Octeville | 4,565.93 mi (7,348.15 km) |
| Monroe to Oignies | 4,730.00 mi (7,612.20 km) |
| Monroe to Oissel | 4,686.24 mi (7,541.78 km) |
| Monroe to Olivet | 4,763.09 mi (7,665.45 km) |
| Monroe to Ollioules | 5,083.57 mi (8,181.22 km) |
| Monroe to Olonne-sur-Mer | 4,644.90 mi (7,475.24 km) |
| Monroe to Oloron-Sainte-Marie | 4,793.66 mi (7,714.65 km) |
| Monroe to Onet Village | 4,900.47 mi (7,886.54 km) |
| Monroe to Onnaing | 4,756.42 mi (7,654.72 km) |
| Monroe to Orange | 5,004.74 mi (8,054.35 km) |
| Monroe to Orchies | 4,739.78 mi (7,627.94 km) |
| Monroe to Orleans | 4,762.29 mi (7,664.16 km) |
| Monroe to Orly | 4,757.15 mi (7,655.90 km) |
| Monroe to Ormesson-sur-Marne | 4,761.87 mi (7,663.49 km) |
| Monroe to Orsay | 4,750.08 mi (7,644.52 km) |
