| Welkenraedt to Oignies | 131.35 mi (211.39 km) |
| Welkenraedt to Oissel | 235.04 mi (378.26 km) |
| Welkenraedt to Olivet | 266.44 mi (428.79 km) |
| Welkenraedt to Ollioules | 519.70 mi (836.37 km) |
| Welkenraedt to Olonne-sur-Mer | 453.94 mi (730.54 km) |
| Welkenraedt to Oloron-Sainte-Marie | 601.51 mi (968.03 km) |
| Welkenraedt to Onet Village | 462.50 mi (744.32 km) |
| Welkenraedt to Onnaing | 105.94 mi (170.49 km) |
| Welkenraedt to Orange | 453.89 mi (730.47 km) |
| Welkenraedt to Orchies | 120.37 mi (193.71 km) |
| Welkenraedt to Orleans | 264.20 mi (425.19 km) |
| Welkenraedt to Orly | 207.59 mi (334.09 km) |
| Welkenraedt to Ormesson-sur-Marne | 200.70 mi (322.99 km) |
| Welkenraedt to Orsay | 216.76 mi (348.84 km) |
| Welkenraedt to Orthez | 587.87 mi (946.09 km) |
