| Pontardulais to Opwijk | 358.45 mi (576.87 km) |
| Pontardulais to Ostend | 301.29 mi (484.88 km) |
| Pontardulais to Oud-Heverlee | 380.97 mi (613.11 km) |
| Pontardulais to Oud-Turnhout | 388.69 mi (625.54 km) |
| Pontardulais to Oudenaarde | 335.33 mi (539.67 km) |
| Pontardulais to Oudenburg | 305.21 mi (491.19 km) |
| Pontardulais to Oupeye | 424.48 mi (683.14 km) |
| Pontardulais to Overijse | 376.06 mi (605.20 km) |
| Pontardulais to Overpelt | 408.21 mi (656.95 km) |
| Pontardulais to Paal | 399.77 mi (643.36 km) |
| Pontardulais to Peer | 410.68 mi (660.93 km) |
| Pontardulais to Pepinster | 434.19 mi (698.77 km) |
| Pontardulais to Peruwelz | 340.61 mi (548.16 km) |
| Pontardulais to Perwez | 390.65 mi (628.69 km) |
| Pontardulais to Philippeville | 387.89 mi (624.25 km) |
