| Thornaby on Tees to Opwijk | 337.73 mi (543.52 km) |
| Thornaby on Tees to Ostend | 289.71 mi (466.24 km) |
| Thornaby on Tees to Oud-Heverlee | 358.54 mi (577.02 km) |
| Thornaby on Tees to Oud-Turnhout | 344.27 mi (554.06 km) |
| Thornaby on Tees to Oudenaarde | 328.14 mi (528.09 km) |
| Thornaby on Tees to Oudenburg | 294.13 mi (473.36 km) |
| Thornaby on Tees to Oupeye | 394.13 mi (634.28 km) |
| Thornaby on Tees to Overijse | 357.29 mi (575.00 km) |
| Thornaby on Tees to Overpelt | 362.75 mi (583.78 km) |
| Thornaby on Tees to Paal | 363.47 mi (584.94 km) |
| Thornaby on Tees to Peer | 367.84 mi (591.97 km) |
| Thornaby on Tees to Pepinster | 406.43 mi (654.09 km) |
| Thornaby on Tees to Peruwelz | 346.44 mi (557.55 km) |
| Thornaby on Tees to Perwez | 373.67 mi (601.37 km) |
| Thornaby on Tees to Philippeville | 389.11 mi (626.21 km) |
