| Boissy-Saint-Leger to Opwijk | 170.31 mi (274.08 km) |
| Boissy-Saint-Leger to Ostend | 172.01 mi (276.82 km) |
| Boissy-Saint-Leger to Oud-Heverlee | 173.10 mi (278.58 km) |
| Boissy-Saint-Leger to Oud-Turnhout | 208.53 mi (335.59 km) |
| Boissy-Saint-Leger to Oudenaarde | 153.00 mi (246.23 km) |
| Boissy-Saint-Leger to Oudenburg | 169.51 mi (272.80 km) |
| Boissy-Saint-Leger to Oupeye | 194.61 mi (313.20 km) |
| Boissy-Saint-Leger to Overijse | 166.98 mi (268.72 km) |
| Boissy-Saint-Leger to Overpelt | 213.79 mi (344.06 km) |
| Boissy-Saint-Leger to Paal | 197.61 mi (318.02 km) |
| Boissy-Saint-Leger to Peer | 210.28 mi (338.42 km) |
| Boissy-Saint-Leger to Pepinster | 193.95 mi (312.13 km) |
| Boissy-Saint-Leger to Peruwelz | 131.16 mi (211.08 km) |
| Boissy-Saint-Leger to Perwez | 165.45 mi (266.27 km) |
| Boissy-Saint-Leger to Philippeville | 135.72 mi (218.42 km) |
