| Guillena to Opwijk | 1,055.04 mi (1,697.93 km) |
| Guillena to Ostend | 1,042.78 mi (1,678.19 km) |
| Guillena to Oud-Heverlee | 1,058.84 mi (1,704.03 km) |
| Guillena to Oud-Turnhout | 1,094.23 mi (1,760.99 km) |
| Guillena to Oudenaarde | 1,034.84 mi (1,665.42 km) |
| Guillena to Oudenburg | 1,041.87 mi (1,676.72 km) |
| Guillena to Oupeye | 1,076.47 mi (1,732.41 km) |
| Guillena to Overijse | 1,052.72 mi (1,694.20 km) |
| Guillena to Overpelt | 1,099.13 mi (1,768.88 km) |
| Guillena to Paal | 1,083.02 mi (1,742.95 km) |
| Guillena to Peer | 1,095.32 mi (1,762.74 km) |
| Guillena to Pepinster | 1,073.26 mi (1,727.25 km) |
| Guillena to Peruwelz | 1,014.78 mi (1,633.13 km) |
| Guillena to Perwez | 1,050.56 mi (1,690.71 km) |
| Guillena to Philippeville | 1,019.84 mi (1,641.27 km) |
