| Waltham Abbey to Opwijk | 187.26 mi (301.36 km) |
| Waltham Abbey to Ostend | 129.60 mi (208.57 km) |
| Waltham Abbey to Oud-Heverlee | 210.12 mi (338.16 km) |
| Waltham Abbey to Oud-Turnhout | 215.78 mi (347.26 km) |
| Waltham Abbey to Oudenaarde | 165.93 mi (267.04 km) |
| Waltham Abbey to Oudenburg | 133.76 mi (215.26 km) |
| Waltham Abbey to Oupeye | 253.38 mi (407.78 km) |
| Waltham Abbey to Overijse | 205.71 mi (331.06 km) |
| Waltham Abbey to Overpelt | 235.39 mi (378.82 km) |
| Waltham Abbey to Paal | 227.51 mi (366.14 km) |
| Waltham Abbey to Peer | 238.03 mi (383.08 km) |
| Waltham Abbey to Pepinster | 263.70 mi (424.38 km) |
| Waltham Abbey to Peruwelz | 175.12 mi (281.83 km) |
| Waltham Abbey to Perwez | 221.09 mi (355.81 km) |
| Waltham Abbey to Philippeville | 223.00 mi (358.88 km) |
