| Unye to Opwijk | 1,708.26 mi (2,749.18 km) |
| Unye to Ostend | 1,765.39 mi (2,841.12 km) |
| Unye to Oud-Heverlee | 1,685.87 mi (2,713.14 km) |
| Unye to Oud-Turnhout | 1,678.96 mi (2,702.03 km) |
| Unye to Oudenaarde | 1,731.88 mi (2,787.19 km) |
| Unye to Oudenburg | 1,761.46 mi (2,834.79 km) |
| Unye to Oupeye | 1,642.34 mi (2,643.08 km) |
| Unye to Overijse | 1,690.96 mi (2,721.34 km) |
| Unye to Overpelt | 1,659.19 mi (2,670.21 km) |
| Unye to Paal | 1,666.99 mi (2,682.77 km) |
| Unye to Peer | 1,656.40 mi (2,665.72 km) |
| Unye to Pepinster | 1,632.95 mi (2,627.99 km) |
| Unye to Peruwelz | 1,728.90 mi (2,782.40 km) |
| Unye to Perwez | 1,676.85 mi (2,698.63 km) |
| Unye to Philippeville | 1,683.38 mi (2,709.15 km) |
