| Aberbargoed to Opwijk | 323.58 mi (520.76 km) |
| Aberbargoed to Ostend | 266.38 mi (428.69 km) |
| Aberbargoed to Oud-Heverlee | 346.14 mi (557.05 km) |
| Aberbargoed to Oud-Turnhout | 353.74 mi (569.30 km) |
| Aberbargoed to Oudenaarde | 300.60 mi (483.76 km) |
| Aberbargoed to Oudenburg | 270.31 mi (435.02 km) |
| Aberbargoed to Oupeye | 389.64 mi (627.07 km) |
| Aberbargoed to Overijse | 341.26 mi (549.21 km) |
| Aberbargoed to Overpelt | 373.26 mi (600.70 km) |
| Aberbargoed to Paal | 364.84 mi (587.15 km) |
| Aberbargoed to Peer | 375.73 mi (604.69 km) |
| Aberbargoed to Pepinster | 399.41 mi (642.79 km) |
| Aberbargoed to Peruwelz | 306.23 mi (492.83 km) |
| Aberbargoed to Perwez | 355.94 mi (572.83 km) |
| Aberbargoed to Philippeville | 353.65 mi (569.15 km) |
