| Wilmette to Opwijk | 4,122.93 mi (6,635.21 km) |
| Wilmette to Ostend | 4,066.54 mi (6,544.47 km) |
| Wilmette to Oud-Heverlee | 4,145.73 mi (6,671.91 km) |
| Wilmette to Oud-Turnhout | 4,140.27 mi (6,663.12 km) |
| Wilmette to Oudenaarde | 4,105.16 mi (6,606.61 km) |
| Wilmette to Oudenburg | 4,071.03 mi (6,551.70 km) |
| Wilmette to Oupeye | 4,186.65 mi (6,737.75 km) |
| Wilmette to Overijse | 4,142.53 mi (6,666.75 km) |
| Wilmette to Overpelt | 4,159.87 mi (6,694.67 km) |
| Wilmette to Paal | 4,157.21 mi (6,690.39 km) |
| Wilmette to Peer | 4,164.26 mi (6,701.72 km) |
| Wilmette to Pepinster | 4,198.27 mi (6,756.46 km) |
| Wilmette to Peruwelz | 4,116.23 mi (6,624.43 km) |
| Wilmette to Perwez | 4,158.77 mi (6,692.89 km) |
| Wilmette to Philippeville | 4,164.03 mi (6,701.35 km) |
