| Alsdorf to Novi di Modena | 468.16 mi (753.44 km) |
| Alsdorf to Novi Ligure | 440.16 mi (708.36 km) |
| Alsdorf to Nuoro | 745.77 mi (1,200.20 km) |
| Alsdorf to Occhiobello | 481.96 mi (775.63 km) |
| Alsdorf to Oderzo | 456.52 mi (734.70 km) |
| Alsdorf to Oggiono | 381.42 mi (613.83 km) |
| Alsdorf to Olbia | 706.84 mi (1,137.54 km) |
| Alsdorf to Oleggio | 382.22 mi (615.12 km) |
| Alsdorf to Olgiate Comasco | 375.04 mi (603.57 km) |
| Alsdorf to Olgiate Olona | 383.59 mi (617.33 km) |
| Alsdorf to Omegna | 360.74 mi (580.55 km) |
| Alsdorf to Opera | 405.11 mi (651.97 km) |
| Alsdorf to Oppeano | 449.66 mi (723.67 km) |
| Alsdorf to Orbassano | 410.89 mi (661.27 km) |
| Alsdorf to Orbetello | 630.20 mi (1,014.21 km) |
