| Haldensleben to Opwijk | 323.17 mi (520.09 km) |
| Haldensleben to Ostend | 370.48 mi (596.23 km) |
| Haldensleben to Oud-Heverlee | 306.64 mi (493.49 km) |
| Haldensleben to Oud-Turnhout | 282.78 mi (455.09 km) |
| Haldensleben to Oudenaarde | 349.82 mi (562.98 km) |
| Haldensleben to Oudenburg | 367.86 mi (592.02 km) |
| Haldensleben to Oupeye | 271.05 mi (436.21 km) |
| Haldensleben to Overijse | 313.33 mi (504.25 km) |
| Haldensleben to Overpelt | 266.93 mi (429.59 km) |
| Haldensleben to Paal | 280.97 mi (452.18 km) |
| Haldensleben to Peer | 267.31 mi (430.19 km) |
| Haldensleben to Pepinster | 268.74 mi (432.49 km) |
| Haldensleben to Peruwelz | 358.83 mi (577.48 km) |
| Haldensleben to Perwez | 306.34 mi (493.01 km) |
| Haldensleben to Philippeville | 329.88 mi (530.89 km) |
