| Welkenraedt to Novi di Modena | 459.29 mi (739.16 km) |
| Welkenraedt to Novi Ligure | 428.14 mi (689.03 km) |
| Welkenraedt to Nuoro | 732.81 mi (1,179.34 km) |
| Welkenraedt to Occhiobello | 474.08 mi (762.95 km) |
| Welkenraedt to Oderzo | 451.10 mi (725.97 km) |
| Welkenraedt to Oggiono | 371.05 mi (597.14 km) |
| Welkenraedt to Olbia | 694.16 mi (1,117.14 km) |
| Welkenraedt to Oleggio | 370.51 mi (596.28 km) |
| Welkenraedt to Olgiate Comasco | 364.03 mi (585.85 km) |
| Welkenraedt to Olgiate Olona | 372.31 mi (599.18 km) |
| Welkenraedt to Omegna | 348.86 mi (561.43 km) |
| Welkenraedt to Opera | 394.17 mi (634.35 km) |
| Welkenraedt to Oppeano | 441.66 mi (710.79 km) |
| Welkenraedt to Orbassano | 397.27 mi (639.35 km) |
| Welkenraedt to Orbetello | 619.83 mi (997.53 km) |
