| Buckingham to Opwijk | 233.44 mi (375.69 km) |
| Buckingham to Ostend | 175.77 mi (282.88 km) |
| Buckingham to Oud-Heverlee | 256.39 mi (412.62 km) |
| Buckingham to Oud-Turnhout | 260.05 mi (418.51 km) |
| Buckingham to Oudenaarde | 212.79 mi (342.45 km) |
| Buckingham to Oudenburg | 180.04 mi (289.74 km) |
| Buckingham to Oupeye | 299.43 mi (481.88 km) |
| Buckingham to Overijse | 252.19 mi (405.86 km) |
| Buckingham to Overpelt | 279.87 mi (450.40 km) |
| Buckingham to Paal | 272.82 mi (439.06 km) |
| Buckingham to Peer | 282.83 mi (455.17 km) |
| Buckingham to Pepinster | 309.98 mi (498.86 km) |
| Buckingham to Peruwelz | 222.37 mi (357.87 km) |
| Buckingham to Perwez | 267.77 mi (430.93 km) |
| Buckingham to Philippeville | 270.24 mi (434.91 km) |
