| Alsdorf to Octeville | 355.57 mi (572.24 km) |
| Alsdorf to Oignies | 141.84 mi (228.26 km) |
| Alsdorf to Oissel | 248.75 mi (400.32 km) |
| Alsdorf to Olivet | 283.38 mi (456.06 km) |
| Alsdorf to Ollioules | 535.26 mi (861.42 km) |
| Alsdorf to Olonne-sur-Mer | 469.92 mi (756.26 km) |
| Alsdorf to Oloron-Sainte-Marie | 619.05 mi (996.26 km) |
| Alsdorf to Onet Village | 479.94 mi (772.39 km) |
| Alsdorf to Onnaing | 117.65 mi (189.33 km) |
| Alsdorf to Orange | 470.29 mi (756.87 km) |
| Alsdorf to Orchies | 131.02 mi (210.86 km) |
| Alsdorf to Orleans | 281.12 mi (452.41 km) |
| Alsdorf to Orly | 223.91 mi (360.35 km) |
| Alsdorf to Ormesson-sur-Marne | 217.09 mi (349.38 km) |
| Alsdorf to Orsay | 232.96 mi (374.92 km) |
