| Onex to Borsbeek | 354.35 mi (570.27 km) |
| Onex to Boussu | 312.10 mi (502.27 km) |
| Onex to Braine-l'Alleud | 320.65 mi (516.04 km) |
| Onex to Braine-le-Chateau | 322.05 mi (518.29 km) |
| Onex to Braine-le-Comte | 318.19 mi (512.08 km) |
| Onex to Brasschaat | 360.58 mi (580.29 km) |
| Onex to Brecht | 363.16 mi (584.45 km) |
| Onex to Bredene | 376.81 mi (606.42 km) |
| Onex to Bree | 342.82 mi (551.72 km) |
| Onex to Bruges | 371.10 mi (597.23 km) |
| Onex to Brussels | 331.96 mi (534.24 km) |
| Onex to Buggenhout | 343.91 mi (553.47 km) |
| Onex to Chapelle-lez-Herlaimont | 307.47 mi (494.83 km) |
| Onex to Charleroi | 301.23 mi (484.78 km) |
| Onex to Chatelet | 300.28 mi (483.25 km) |
