| Ilion to Opwijk | 1,305.31 mi (2,100.70 km) |
| Ilion to Ostend | 1,360.56 mi (2,189.61 km) |
| Ilion to Oud-Heverlee | 1,282.85 mi (2,064.54 km) |
| Ilion to Oud-Turnhout | 1,292.03 mi (2,079.32 km) |
| Ilion to Oudenaarde | 1,321.52 mi (2,126.78 km) |
| Ilion to Oudenburg | 1,356.03 mi (2,182.32 km) |
| Ilion to Oupeye | 1,243.58 mi (2,001.35 km) |
| Ilion to Overijse | 1,285.53 mi (2,068.85 km) |
| Ilion to Overpelt | 1,273.04 mi (2,048.76 km) |
| Ilion to Paal | 1,273.79 mi (2,049.97 km) |
| Ilion to Peer | 1,268.18 mi (2,040.94 km) |
| Ilion to Pepinster | 1,231.57 mi (1,982.02 km) |
| Ilion to Peruwelz | 1,309.29 mi (2,107.09 km) |
| Ilion to Perwez | 1,269.09 mi (2,042.40 km) |
| Ilion to Philippeville | 1,261.72 mi (2,030.54 km) |
