| Bouc-Bel-Air to Opwijk | 522.24 mi (840.46 km) |
| Bouc-Bel-Air to Ostend | 549.42 mi (884.21 km) |
| Bouc-Bel-Air to Oud-Heverlee | 511.03 mi (822.43 km) |
| Bouc-Bel-Air to Oud-Turnhout | 543.60 mi (874.85 km) |
| Bouc-Bel-Air to Oudenaarde | 518.01 mi (833.65 km) |
| Bouc-Bel-Air to Oudenburg | 545.78 mi (878.34 km) |
| Bouc-Bel-Air to Oupeye | 501.31 mi (806.78 km) |
| Bouc-Bel-Air to Overijse | 508.06 mi (817.64 km) |
| Bouc-Bel-Air to Overpelt | 536.32 mi (863.13 km) |
| Bouc-Bel-Air to Paal | 524.18 mi (843.59 km) |
| Bouc-Bel-Air to Peer | 530.53 mi (853.80 km) |
| Bouc-Bel-Air to Pepinster | 491.78 mi (791.44 km) |
| Bouc-Bel-Air to Peruwelz | 495.49 mi (797.41 km) |
| Bouc-Bel-Air to Perwez | 496.18 mi (798.52 km) |
| Bouc-Bel-Air to Philippeville | 467.85 mi (752.94 km) |
