| Monschau to Octeville | 355.86 mi (572.70 km) |
| Monschau to Oignies | 143.48 mi (230.90 km) |
| Monschau to Oissel | 244.50 mi (393.48 km) |
| Monschau to Olivet | 270.75 mi (435.74 km) |
| Monschau to Ollioules | 513.08 mi (825.72 km) |
| Monschau to Olonne-sur-Mer | 460.19 mi (740.61 km) |
| Monschau to Oloron-Sainte-Marie | 602.80 mi (970.11 km) |
| Monschau to Onet Village | 460.78 mi (741.55 km) |
| Monschau to Onnaing | 117.49 mi (189.08 km) |
| Monschau to Orange | 448.81 mi (722.29 km) |
| Monschau to Orchies | 132.46 mi (213.17 km) |
| Monschau to Orleans | 268.60 mi (432.26 km) |
| Monschau to Orly | 213.53 mi (343.65 km) |
| Monschau to Ormesson-sur-Marne | 206.52 mi (332.36 km) |
| Monschau to Orsay | 222.91 mi (358.73 km) |
