| Alsip to Opwijk | 4,142.52 mi (6,666.74 km) |
| Alsip to Ostend | 4,086.07 mi (6,575.89 km) |
| Alsip to Oud-Heverlee | 4,165.35 mi (6,703.48 km) |
| Alsip to Oud-Turnhout | 4,160.09 mi (6,695.02 km) |
| Alsip to Oudenaarde | 4,124.64 mi (6,637.96 km) |
| Alsip to Oudenburg | 4,090.55 mi (6,583.11 km) |
| Alsip to Oupeye | 4,206.34 mi (6,769.46 km) |
| Alsip to Overijse | 4,162.10 mi (6,698.26 km) |
| Alsip to Overpelt | 4,179.72 mi (6,726.61 km) |
| Alsip to Paal | 4,176.97 mi (6,722.18 km) |
| Alsip to Peer | 4,184.08 mi (6,733.62 km) |
| Alsip to Pepinster | 4,217.94 mi (6,788.12 km) |
| Alsip to Peruwelz | 4,135.59 mi (6,655.59 km) |
| Alsip to Perwez | 4,178.33 mi (6,724.37 km) |
| Alsip to Philippeville | 4,183.40 mi (6,732.54 km) |
