| Montreuil to Opwijk | 164.78 mi (265.19 km) |
| Montreuil to Ostend | 164.74 mi (265.13 km) |
| Montreuil to Oud-Heverlee | 168.44 mi (271.08 km) |
| Montreuil to Oud-Turnhout | 203.59 mi (327.65 km) |
| Montreuil to Oudenaarde | 146.75 mi (236.18 km) |
| Montreuil to Oudenburg | 162.34 mi (261.26 km) |
| Montreuil to Oupeye | 191.44 mi (308.09 km) |
| Montreuil to Overijse | 162.21 mi (261.05 km) |
| Montreuil to Overpelt | 209.48 mi (337.12 km) |
| Montreuil to Paal | 193.29 mi (311.06 km) |
| Montreuil to Peer | 206.14 mi (331.75 km) |
| Montreuil to Pepinster | 191.27 mi (307.82 km) |
| Montreuil to Peruwelz | 125.22 mi (201.52 km) |
| Montreuil to Perwez | 161.38 mi (259.72 km) |
| Montreuil to Philippeville | 132.20 mi (212.76 km) |
