| Ponte da Barca to Opwijk | 870.47 mi (1,400.89 km) |
| Ponte da Barca to Ostend | 843.41 mi (1,357.34 km) |
| Ponte da Barca to Oud-Heverlee | 880.35 mi (1,416.78 km) |
| Ponte da Barca to Oud-Turnhout | 912.48 mi (1,468.50 km) |
| Ponte da Barca to Oudenaarde | 846.27 mi (1,361.93 km) |
| Ponte da Barca to Oudenburg | 843.73 mi (1,357.85 km) |
| Ponte da Barca to Oupeye | 908.28 mi (1,461.73 km) |
| Ponte da Barca to Overijse | 873.67 mi (1,406.03 km) |
| Ponte da Barca to Overpelt | 922.35 mi (1,484.37 km) |
| Ponte da Barca to Paal | 906.38 mi (1,458.68 km) |
| Ponte da Barca to Peer | 919.91 mi (1,480.45 km) |
| Ponte da Barca to Pepinster | 908.51 mi (1,462.11 km) |
| Ponte da Barca to Peruwelz | 830.19 mi (1,336.06 km) |
| Ponte da Barca to Perwez | 876.15 mi (1,410.03 km) |
| Ponte da Barca to Philippeville | 848.75 mi (1,365.94 km) |
