| Brussels to Novi di Modena | 510.76 mi (821.99 km) |
| Brussels to Novi Ligure | 468.02 mi (753.20 km) |
| Brussels to Nuoro | 765.93 mi (1,232.65 km) |
| Brussels to Occhiobello | 528.43 mi (850.43 km) |
| Brussels to Oderzo | 511.72 mi (823.54 km) |
| Brussels to Oggiono | 418.26 mi (673.12 km) |
| Brussels to Olbia | 728.95 mi (1,173.13 km) |
| Brussels to Oleggio | 412.44 mi (663.76 km) |
| Brussels to Olgiate Comasco | 408.89 mi (658.05 km) |
| Brussels to Olgiate Olona | 416.01 mi (669.51 km) |
| Brussels to Omegna | 390.36 mi (628.23 km) |
| Brussels to Opera | 438.91 mi (706.36 km) |
| Brussels to Oppeano | 495.87 mi (798.03 km) |
| Brussels to Orbassano | 429.45 mi (691.13 km) |
| Brussels to Orbetello | 665.15 mi (1,070.45 km) |
