| Thornbury to Opwijk | 293.14 mi (471.77 km) |
| Thornbury to Ostend | 236.03 mi (379.85 km) |
| Thornbury to Oud-Heverlee | 315.66 mi (508.01 km) |
| Thornbury to Oud-Turnhout | 323.69 mi (520.93 km) |
| Thornbury to Oudenaarde | 270.06 mi (434.62 km) |
| Thornbury to Oudenburg | 239.93 mi (386.13 km) |
| Thornbury to Oupeye | 359.18 mi (578.04 km) |
| Thornbury to Overijse | 310.76 mi (500.12 km) |
| Thornbury to Overpelt | 343.14 mi (552.22 km) |
| Thornbury to Paal | 334.53 mi (538.38 km) |
| Thornbury to Peer | 345.53 mi (556.08 km) |
| Thornbury to Pepinster | 368.90 mi (593.69 km) |
| Thornbury to Peruwelz | 275.68 mi (443.66 km) |
| Thornbury to Perwez | 325.40 mi (523.67 km) |
| Thornbury to Philippeville | 323.12 mi (520.02 km) |
